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, 



Fig. 81. — Subsoil plow. 



Fig 82. — A subsoil plow in action. 



jbiG. aa. — ine worK; ot a subsoil plow. 



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

 weathered before planting time. 

 10 



