FALL PLOWING 



145 



fall plowing is best. This results in less loss of nitrogen through 

 leaching, and in the development of a firm seed bed. Furthermore, 





Fia. 81. Subsoil plow. 



FIG 82. A subsoil plow in action. 



Fia. 83. The work of a subsoil plow. 



j when any "raw" subsoil is turned up, it becomes thoroughly 

 weathered before planting time. 

 10 



