WHEAT 



53 



or four years or in alternate years, if this is neces- 

 sary, in order to store a sufficient supply of mois- 

 ture in the soil to insure a profitable crop when 

 wheat is planted. The cultivation of the fallow 

 not only conserves the soil moisture and clears 

 the land of weeds but also favors the development 

 of the fertility of the soil, so that a larger amount 

 of plant food may become available to the crop 

 following the fallow. 



METHODS OF FALLOWING 



There are several methods of summer fallowing 

 practiced in the several states, but the method 

 which has given uniformly good results at the 

 Montana, Nebraska and Kansas experiment sta- 

 tions is to plow deep, six to eight inches, rather 

 late in the spring, and then give sufficient cultiva- 



Fig. 13. Listing the soil to prevent drifting and to conserve 

 moisture on summer tilled land. 



