GROWING CULTIVATED CROPS IN DRY AREAS 281 



that run near the surface, but should a crust form below 

 the dust mulch, it ought to be broken up by deeper culti- 

 vation. Usually cultivation does not continue longer 

 than the season of tasseling in the corn, but in dry 

 weather it may pay well to continue it longer. The in- 

 terval between the cultivations must be determined in 

 a great measure by the grower on clean land. No advan- 



DRY LAND FODDER CORN, GROWN NEAR SHERWOOD, N. DAKOTA. 

 Courtesy Great Northern Railway Co. 



tage can result from cultivating when soil moisture is not 

 escaping unduly. It is seldom necessary to cultivate 

 more frequently than, say, each 10 to 14 days. In dry 

 areas late cultivation may have an important bearing on 

 the crop that follows, because of the moisture which it 

 may save to the soil. 



When corn is listed it is usually advantageous to 

 use on the crop, during the growth period, the harrow, 



