218 



FIELD CROPS 



United States produced in the more important states is 

 graphically shown in Fig. 73. 



Table XII . The average annual acreage, production, and farm val- 

 ue, and the mean yield per acre of barley in the ten leading states 

 for the ten years from 1902 to 1911. 



As shown by the table and the accompanying diagram, 

 the greater portion of the barley crop is produced in Califor- 

 nia and in the upper Mississippi Valley. In California, 

 barley is most largely grown in the San Joaquin and Sacra- 

 mento valleys. Southern Wisconsin, southern Minnesota, 

 northern Iowa, eastern North and South Dakota, and eastern 

 Washington are other sections of importance in the produc- 

 tion of this crop. California produces more than one-fifth 

 of the barley of the entire country, while Minnesota, 

 Wisconsin, and the Dakotas grow about two-thirds of the 

 remainder, or more than half of the entire crop. The 

 highest yields to the acre are obtained in the Rocky Moun- 

 tain section and in the Pacific Northwest. The average 

 yield in Idaho for the ten years from 1902 to 1911 was 39.4 

 bushels; in Utah, 38.5 bushels; and in Washington, 37.0 

 bushels. In comparison with these figures, the average 



