140 



FIELD CROPS 



states in the production of winter wheat are Kansas, Indiana, 

 Nebraska, Illinois, Ohio, Missouri, Pennsylvania, Oklahoma, 

 and Texas; in these states over 60 per cent of the winter wheat 

 crop of the United States is produced. 



177. Spring Wheat. Minnesota and North and South 

 Dakota produce about 70 per cent of the spring wheat of the 



rf, 



Fig. 44. Good heads of beardless spring wheat. 



United States, a very large proportion of which is either of 

 the fife or bluestem type. There are numerous varieties 

 of these two types, but in each type the varieties are so much 

 alike that it is practically impossible to distinguish differ- 

 ences. These types do not differ materially in composition 

 or value. They are both standard hard spring wheats. 

 In some sections one kind is preferred, while elsewhere th 



