402 FIELD CROPS 



1,682,000,000 bushels; European Russia, 1,252,000,000 bushels; 

 Austria-Himgary, 702,000,000 bushels; France, 485,000,000 

 bushels; United States, 357,000,000 bushels; and Great Brit- 

 ain and Ireland, 254,000,000 bushels. The immense total 

 world production indicates the very general and extensive 

 use of this crop. The average acre yields obtained in some 

 of the leading potato-producing countries during the ten years 

 from 1904 to 1913, inclusive, are as follows: Great Britain 

 and Ireland, 210 bushels; Germany, 201 bushels; France, 130 

 bushels; Austria, 115 bushels; Russia, 106 bushels; and 

 United States, 96 bushels. 



546. Production in the United States. As shown by 

 the preceding paragraph, the United States produces only 

 about 6.5 per cent of the world's crop of potatoes. For the 

 five years from 1913 to 1917, inclusive, an average of 3,8 14,- 

 000 acres was devoted to the potato crop of the United States, 

 from which 366,131,000 bushels were produced, worth $322; 

 511,000. The average annual acreage, production, and value 

 of the potato crop in the leading states is shown in Table XIX. 



N. T. mmmt^^mm^^mBB^tm^mmmmmma 8.6% 



MICH. ^mm^mmm^K^^^mm^^K^m^m^ 8.2% 



WIS. m^a^mmm^^m^mm^^^^^tm 7.09% 



MINN, ^^mm^am^^mm^^^^ammm^ 7.7% 



MAINE. wmmm^^^m^ma^ma^mammBm 7.1% 



PENN. ^a^^mmm^a^^^^^mBmtm 6.5% 

 YiRGirnkmammmmmmmmm 3.8% 



omo ^i^^BBH^^ 3.2% 



CAUF. i^mmmmmmm^ 3.0% 



IOWA mmm^m^mmm 2.9% 



Figure 136. — Percentage of the potato crop of the United States which ia pro- 

 duced in each of the ten states of largest production, 1908-1917. 



Ten states produce nearly two thirds of the potato crop 

 of the United States, as shown in the accompanying diagram 

 (Figure 136). The remainder of the crop is distributed 

 over practically the entire area of the country, potatoes being 

 produced to some extent in every state in the Union. The 

 states of largest production, however, are mostly along 

 the northern border. This crop is of greater importance 



