CHAPTEE III 



CORN, WHEAT, OATS, BARLEY, RYE, AND ROTATION OF SMALL GRAINS 

 By R. F. Wiggans, Ph.D.' 



CORN 



Corn is by far the most important crop in the United States. 

 Xot only the acreage and production but also the value of this 

 crop is far greater than that of wheat, oats, barle}^, and rye 

 combined. 



The world's corn crop. — The world's yearly corn crop 

 averaged 3,86,7,247,000 bushels for the period 1910-1917. Three- 

 fourths of this is produced in ITorth America, while the United 

 States produces ninety-three per cent of the North American 

 crop, as the following tables shoAV, the data of which is 

 abstracted from the United States Department Year Books. 



Percentage of World's Corn Produced by Continents (1910-1914) 



North America 



Europe 



South America 



Africa 



Australia 



75.7 

 16.3 

 5.1 



Production within the United States. — Seven adjacent states 

 in the Mississippi Valley constitute what is known as the corn 

 belt. Within the borders of these states is produced more than 

 one-half of the corn crop. Regardless of the fact that corn 

 production is concentrated in Illinois, Iowa, Missouri, Nebraska, 

 Indiana, Kansas, Texas, and Ohio, every state in the United 



College of Agriculture, Cornell University. 



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