Principles of Soil Conservation and Management

     

      

              



        



               

               

                

 

 

                                                                                         



                                                                                                                                                                                                                                                                                                                                                                         

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     





                                                                                                                    

   



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

                      

                                                                                                                                                                                                                                                                                                                                                                                      

         

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

   

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     

                    

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

                      







                                                                                                                                                                                                                                                                                                                                                           

       

                                                                                                                                                                                                                                                                                             

        

      



  



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

                                                                                                                                                              





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

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

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              



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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             







                                                

                                                                                                                                                                                                                                                                           

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    





       

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

                                                             

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

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               



 



                                                                                                   

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

                                                                       

  

 

                                                                                                                                                                                                                                                                                                                                                 







                                                                                  

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     





     

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

 

   

                                                                                                                 

                             

               





         

               

 

             

                

               

     

                                                                                                                                                                                                                                         

                                            

  



                                   



                                           

                                                                                                                                                                                                                     

                                              



    

                                                                                                                                       

                                                                             

                                                                                                                                                                                                                                

    

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                  

                                                                                                   

                                                                                                                                                        

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    

                         

                                                                                                          

                                                                                 

         

    



                              

                                                                                                                           

                                                              

         



             

 

 

 

 

 

 

                 

     

              

                   

                                                                                                                                     

                                                                                                                        

    



            



          

               

                      

                       

                                                                                                                                                               

                 

                                   



    

                                                            

                                                                                                                                                                                                                               

                                                                                                                                             

                   

   



   





 









                                                                                                                                                                                                               

                                                                                                 

           

     

  







    





 

   

                                                                                                                        

                        

      



                                                                                                                                                                                                

                                                                                                                                                                                                                                                                                                                                                 

  

               

    

       



 

 

   

                                                                                                                                                                                                                    

                                                                                                   

          



      



 









    







   

                                                                                                                                                                                                                                                                                                                                                                                                                    

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    

                        

                                                                                                                                                                                                                                                                                                 

                                                                                                                                                  

 



                                                                                                                                                                                                                                                                                                        

                                                                                                                                                



    

                          

                                                                                                                                       

                                                                                                                                                                                                                                                                                                    





                                                                                                                                                                                                                                                                         

 

 

                                                        

                                             

                          

                                                                                                                            





  

           

  

 



                                                

         

   







                                    

 

 





 



 



                                   

                

                                                 



 



           

                                               



 

                                                                                          

   





                                            



  

 

   



                                    

   



  



     



         





        

   



        





 

     

 

 

                               

            

                                         

 



                                                    

               

 

                        

                                                                                                



  

          



                    



  

   



                                                                                                                                 

                                                                                                                                                    

                             

 



                      

                                      

                                                                                                                                        



             

                     

                       

                                                               

                                                                    

                          

                                                                                                                

              

 

      

                                                                                           

                                                                                                        

                                                                            

        

                                                                         

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  

                                                                                                                                                                                                             

                                                                                 

                                                                                            

                                                                                 

  



                                                                                                                                                 



                                                                                                                                                        



  







     

                                                  

     



                   

 





  

                                          

  

                                                                                                                                                                              

    



                      

     

  



                                                    

  



                                                                            



                                             

                                                                                                                                              

                                                                     



  

                                                                                                                                                                   

           

                                               

      



                                                             

  



                                          

                                                        



                             

      

     







                          



  

      



          



 

 

                                                                                          



                                                                 

                    

 

                           

           

                        

  



    



  



                                                                    



              





                       

   



                                                 

                                        

                                                                               



  

                  

 

   



















 

 

 

 

       

        

        

        

        

     

     

     

     

     





















                 

     

     

     

     

                             





                                                              

                                            

  



                                                                                                                                                                  

  

  

  

       







 

     

    

       

           

          





                   

            

         



  

                         

    



                                                                  

       



                      



  



          





          



  





  



  

                     



    



                                          

           

                                                    

                           

                                                                      

                                                                                                                      



  

                                      

                                                                                                                                                                                                        

                            

                                             

    



                                                                                                                                                                                                                                                                                                                                                                                                                                                       



  

                                                                                                                                                                                    

                             

            

                                                                                     

                                 

    





 













 





 

  





 



















                                            

                                                         

                                                                                                                                                               



  

                                                                

   

                              

               

           







  





 



                                     

    

                    

    

    



               

 



        

               

  



                           

   

                     

                                                                   

             

                                                                     

  

                                  



  

                                     

              



                                              

                                                                                                                                                                                                         

    

    

  

  



 

             



                                                                                                

  



  

                                                                                                                                                                         

                                             

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  

                                                                                                                                                                                                                                                                                                                              

                                                                                                                                        

 

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                                                                                                                                                                    

   

                                                                                                                                                                                                                                   

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  

            

                                                                                                                         

                                                                                                                                   

                                                                                                            



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                                                                                                                                        

 

 

                                                                                                        

                                                                                                                                                                                                              

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  

              







    

     

      

                     

                    

     

       

                         

 

 







      

     

     

    

    

  

    

             

       

   

        

                                                                                            



 

 

          



  

                  

                                     

                                     

  

                      

                

 

 

   

                         

                         

    

 

    

 

  



                                                                            

                                                                                                                                                                                                                   

     



    



                                                                                         



 







  

  

 

 



 

 







                                                                 

 



 



 

 

                         

   



   



   

   

   



 

 

   

 

   

   

   

                                                                                                                                                             

                               





  

 



                                            

                                                       

                                                                                                 



  

 

                                                                                                                                                                                                                

      



    



      



    



      



    

                                                                                                  

  



                                                                                                          

                                                   

                                                                                                                                                                                                                  

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  

                                                                                   

                                  

               

                                                               

                                                                                                 

   



             

 

 

 

                                 

                                                             

                                    

           

                        

      



  

             

 

               

          

           

                                                                                                                                                            

           

   

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           

                                                                                                                                                                                                                                                                                                                     

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  

                                                                                                                       

                                                                                                      

                

                                          

                                         

 



           

                                                            

                                                                                 

                          

                  

               



  

                                                                                                                                                                                  

                                                                               

             

 



                                                                                                            









 

 



     



                                                                                



      

 



                                                                             



           

                                                                    

 







  

                                                                                   

 



                                                   

 

    

      

                                                                                     

                                     

                                                               

  

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                                          

 

                                                                              

                                                                                                                                                        

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  

                                     

    

                                                     

              

                                                                                                                            

                                                                                  

  

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                                                                                                                                                                                                                               

                                                                                                                                                                                                                                          

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  

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

 

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                                   

                                                                                                                                                                                                                                                                                                    

                                               

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  

                                             

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                                                                                                                                                             

                    

                                                                                                                                                                                         

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                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

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  

                                   

 

    

                                                                                                                                                                                                                                                                      

               

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     

                 

                                            

                                                                                                                 

                                                 



                                                          

     



                            

     



                                                                                                                                                







 

 















 



 

 





 



   

  



 









     

                                                                         

                     



               



                                                                                                                

                                                         

 

 

 

  

 

                                     

     



                                               



 

 

                         

     

                  

    



            

    

 

                 

  

 

                 

  

  

    





      



        

        



          



   

    



                   

 

  

 

   

  





      

      

      

      

      

      

  

   

      

      

                  

 

  

 

     

     

     

     

            

     

                                                                                                        

      

                                

     



                                                    

      

                       

                      

 

    

                 

 

                                                                     

                                                              



     

                             



          



                                                 



         

                                                                                                                                                         

                                        

     



             



                                      



  



              

                  



     



                                                                           

     



                                                                



     

                                                                                                                                        

      

                  

                                                



                                                      



         



     



           

     

                                                       



           

 



                                                                      



                                                                        

 



                                                  









                                  



     

 

    



                                      

 





                                                                                                           

                                    

                                                                                                                                             

   



                          

    



    

    



                                                 



                                

                                                                                                                                                             

                              



     

                                                

                               



                                                                   



                                            

                                               



                                                                                                             

    



                       

                                                    



                                                                                      

                          

 



  

       





                                                                                                               



     

                       

 



                                                                                                                            

  

                                                                









     

   

   

  

 

 

   

    



                                                     

             

 





 



                                                                                                

            

      

                                             

 



     



     

                                                                                                                                          

                

 

    

                              



       

     

 





             

                       



 

                     



  



   



   

          

  



          



 

    

 



 

                                                                                        

                       



      



    

   





   



 





 

                                        

       



                               

           

 







 

                      

                           

              

        



                 

                                



             

 

     



                     

  



                             

     



                                

       

 



                    





   



                                                       

          

    

      

     

           

      

            

              

                   

 

              



     

                                                                                                                                                                                





      



      



                    



         



          



               



                    

    



                                                                             

                                                                             

                                                     

                                                                                                                    



     

                                    

                                                                                 

                                                                                                                                                                                                                                                            



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                                                                                                                               

                                     



      

                                                                                                                                 

                                                       



     

                                                                                                                                 

                                                                                                                                                                                                                                                                                                                              

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                                                                                                                                                                                                                                  