4 BULLETIN 1188, U. S. DEPARTMENT OF AGRICULTURE. 
Table 1. — Acreage, yield, and production of potatoes for the six leading potato-producing 
States and for the United States, 1913 to 1921, inclv^ive — Continued. 
Michigan. 
Pennsylvania. 
Year. 
Acreage. 
Yield, 
per acre, 
bushels. 
Produc- 
tion, 
bushels. 
Acreage 
Yield, 
per acre, 
bushels. 
Produc- 
tion, 
bushels. 
1913 
350,000 
364, 000 
355, 000 
320, 000 
378, 000 
340,000 
326,000 
340, 000 
340, 000 
96 
121 
5^ 
48 
95 
84 
88 
105 
80 
33, 600, 000 
44, 044, 000 
20, 945, 000 
15,360,000 
35,910,000 
28, 560, 000 
28,688,000 
35, 700, 000 
27, 200, 000 
265, 000 
268,000 
280, 000 
272, 000 
321,000 
305, 000 
254, 000 
317, 000 
251,000 
88 
105 
72 
70 
92 
80 
100 
115 
86 
23, 320, 000 
28, 140, 000 
20, 160, 000 
19,040,000 
29, 532, 000 
24, 400, 000 
25, 400, 000 
36, 455, 000 
1914 
1915 
1916 
1917 
1918 
1919 
1920 
1921 
21,586,000 
10-Vear average 1911-1920 
345, 000 
90 
31, 058, 000 
282,000 
89 
25,055,000 
New York. 
Maine. 
United States. 
Year. 
Acreage. 
Yield 
per 
acre, 
bush- 
els. 
Produc- 
tion, 
bushels. 
Acreage. 
Yield 
per 
acre, 
bush- 
els. 
Produc- 
tion, 
bushels. 
Acreage. 
Yield 
per 
acre, 
bush- 
els. 
Produc- 
tion 
bushels. 
1913 
360,000 
367,000 
355, 000 
320, 000 
400, 000 
380, 000 
363, 000 
370,000 
330, 000 
74 
145 
62 
70 
95 
92 
109 
125 
103 
26,640,000 
53,215,000 
22,010,000 
22, 400, 000 
38, 000, 000 
34, 960, 000 
39, 567, 000 
46, 250, 000 
33, 990, 000 
128,000 
130, 000 
142, 000 
125,000 
150, 000 
112,000 
102, 000 
123, 000 
129. 000 
220 
260 
155 
204 
135 
200 
240 
180 
288 
28, 160, 000 
33, 800, 000 
22, 010, 000 
25, 500, 000 
20, 250. 000 
22, 400, 000 
24, 480, 000 
22, 140, 000 
37,152,000 
3,668,000 
3,711,000 
3,734,000 
3, 565, 000 
4, 384, 000 
4,295,000 
3, 952, 000 
3,929,000 
3,815,000 
90.4 
110.5 
96.3 
80.5 
100.8 
95.9 
90.0 
109.6 
90.9 
331,525,000 
1914 
409, 921, 000 
1915 
359, 721, 000 
1916 
286,953,000 
442, 108, 000 
411,860,000 
355, 773, 000 
430, 458, 000 
1917 
1918 
1919 
1920 
1921 
346, 823, 000 
10 -year aver- 
age 1911-1930. 
365,000 
96 
34,895,000 
125,000 
199 
24,315,000 
3,857,000 
97 
374, 170, 000 
PRODUCTION. 
The six leading potato-producing States harvest nearly half the 
total crop of the country. No direct tendency toward increased 
production has been observed in these States during the nine years 
1913 to 1921, inclusive. The acreage increased in Wisconsin and 
Minnesota, but lower yields held down the total production. Produc- 
tion has increased in a few of the Southern States, notably Virginia. 
Centers of production, however, have not changed materially during 
the past nine years. 
YIELDS PER ACRE. 
Maine regularly leads in yield per acre, a result of climate and soils 
admirably adapted to potato production and the use of large quan- 
tities of commercial fertilizers. The average yields of New York, 
Wisconsin, and Minnesota were practically the same during the nine- 
year period. Yields were somewhat higher in New Jersey than in 
the States just mentioned, while those of Pennsylvania and the 
Central Western States were appreciably lower. In the extreme 
Western States, where the crop is raised mainly under irrigation, 
high yields are obtained. Idaho leads these Western States with a 
nine-year average yield of 162 bushels per acre, which is considerably 
below Maine's average of 204 bushels. 
