40 FARM CROPS 



tivation early in the spring, and the shallower 

 cultivation at this time destroys the weeds better 

 and allows for the more rapid and deeper warming 

 of the soil than the too deep cultivation. 



Roots gradually approach the surface near the 

 root stock, which requires that the surface-planted 

 crop be not cultivated too close to the hill at the 

 last cultivation. The root crowns of listed corn, 



CORN CULTIVATOR 



A style of cultivator that destroys the 

 weeds and mellows the surface. The roots 

 are not disturbed at all. 



for instance, being several inches beneath the sur- 

 face of the soil, allow for deep cultivation close to 

 the hill without injury to the corn roots. The vari- 

 ation in yield by the different methods of cultiva- 

 tion from year to year and the nearly uniform aver- 

 age yields indicate that the method of cultivatioB 

 practiced, whether 2 or 3 inches may not make 

 much difference in the yield of the crop, provided' 

 the cultivation is done well and at the right tirat 



WHY WE CULTIVATE 



The primary objects in cultivating are to kill the 

 weeds and maintain a surface mulch of mellow soil 



