236 DRY-FARMING 



vegetables, sugar beets, and other intensive crops, 

 while wheat, corn, and other grains and even much 

 of the forage should be grown as extensive crops 

 upon the non-irrigated or dry-farm lands. It is to 

 be hoped that the time is near at hand when it will 

 be a rarity to see grain grown upon irrigated soil, pro- 

 viding the climatic conditions permit the raising of 

 more extensive crops. 



In view of the present and future greatness of the 

 wheat crop on semiarid lands, it is very important 

 to secure the varieties that will best meet the varying 

 dry-farm conditions. Much has been done to this 

 end, but more needs to be done. Our knowledge of 

 the best wheats is still fragmentary. This is even 

 more true of other dry-farm crops. According to 

 Jardine, the dry- farm wheats grown at present in the 

 United States may be classified as follows : — 



I. Hard spring wheats : 

 (a) Common 

 (fi) Durum 

 II. Winter wheats: 



(«) Hard wheats (Crimean) 



(6) Semihard wheats (Intermountain) 



(c) Soft wheats (Pacific) 



The common varieties of hard spring ivheats are 

 grown principally in districts where winter wheats 

 have not as yet been successful; that is, in the 

 Dakotas, northwestern Nebraska, and other localities 

 with long winters and periods of alternate thawing 



