YIELD OF DRY-FARM CROPS 



289 



comparatively small annual yield of dry-farm crops 

 is emphasized in 

 view of the common 

 practice of summer 

 fallowing, which 

 means that the land 

 is cropped only every 

 other year or possi- 

 bly two years out of 

 three. Under such 

 conditions the yield 

 in any one year is 

 cut in two to give an 

 annual yield. 



The use of the 

 header wherever 

 possible in harvest- 

 ing dry-farm grain 

 also aids materially 

 in maintaining soil- 

 fertility. By means 

 of the header only 

 the heads of the 

 grain are clipped off ; 

 the stalks are left 

 standing. In the 



fall, usually, this p^^ gg Cry-farm barley. Utah, 1909. 



stubble is plowed 



under and gradually decays. In the earher dry- 



