144 FIELD CROP 8 



The table given and the diagram (Fig. 45) show Kansas, 

 North Dakota, Minnesota, Nebraska, and South Dakota 

 to be the leading wheat states. These five states produce 44 

 per cent of the entire wheat crop of the United States. The 

 ten states included in Table VII produce 67 per cent of the 

 entire wheat crop of the United States, which locates the 

 wheat belt in the North Central states. 



The importance of the crop in the various states is best 

 shown by the proportion of the improved farm acreage which 

 is annually devoted to it. Slightly more than one-tenth 

 (10.47 per cent) of the improved farm acreage of the United 



KANS. mmmm^mm^mtmmmnmf^ /9. rs % 



N. OAft.mmfmi^mmmmmmm^mmmmm^^Hmmmi^^m^^^^^mm +o. 33 % 



85.87% 



24.43% 



Fig. 46. Percentage of improved farm land which is annually planted 

 to wheat in the ten states of largest production and in the United States, 

 1902-1911. 



States was devoted to wheat from 1902 to 1911. A larger 

 proportion of the improved land was sown to this crop in 

 North Dakota than in any other state, as shown by Fig. 46. 

 In Washington, Minnesota, and South Dakota one-fourth or 

 more of the improved farm land was devoted to wheat; in 

 Kansas, about one-fifth. 



182. Yield to the Acre. The most important wheat- 

 producing states are by no means the states with the highest 

 acre yields; in fact, the reverse is usually true. Of the ten 

 leading wheat-producing states, Washington holds first place 

 on the basis of acre yield; Nebraska, second; Ohio, third; 



