30 
BULLETIN 1377, U. S. DEPARTMENT OF AGRICULTURE 
continuous culture and comparing these averages, and the wheat 
yields on plot 2 in continuous culture, with the yields on plots 11 
in rotation; and in case of manure, by averaging the yields on plots 
5 and 6 in continuous culture, for wheat and corn, and comparing 
these averages with the yields on plot 20 in rotation. For reasons 
given beyond, the yields of oats on manured plot No. 5 in continuous 
culture are compared with those on plot 20 in rotation. 
Table 28. — Fertilizers used on the fertility plots at Wooster, Ohio 
[It, pp. 583, 588, 590, 592] 
CONTINUOUS CULTURE 
Crop 
Fertilizer materials (quantities per acre) 
Total 
per acre 
annually 
Yield 
Plot 
Nitrate 
of soda 
Dried 
blood 
Acid 
phosphate 
Muriate 
of potash 
Manure 
per acre 
(25-year 
average) 
3 
Pounds 
160 
160 
120 
160 
160 
120 
320 
320 
280 
320 
320 
280 
Pounds 
Pounds 
60 
Pounds 
30 
50 
30 
100 
100 
100 
60 
100 
60 
100 
100 
100 
Tons 
Pounds 
250 
265 
245 
420 
420 
430 
500 
530 
480 
580 
580 
590 
Tons 
2.6 
2.5 
2.5 
5.0 
5.0 
5.0 
Bushels 
31 7 
Oats 
55 
45 
160 
160 
160 
120 
110 
90 
160 
160 
lfiO 
37 3 
Wheat 
50 
15 7 
2 
40 1 
Oats 
41 1 
Wheat 
60 
19 7 
9 
42.2 
Oats 
45 6 
Wheat 
50 
21.0 
8 
Corn 
449 
Oats 
Wheat 
47.5 
60" 
22 8 
5 
2.5 
2.5 
2.5 
5.0 
5.0 
5.0 
25 4 
Oats... 
29.9 
Wheat 
14.3 
6 
Corn 
35.7 
Oats 
37.4 
Wheat 
18.8 
ROTATION 
8 
80 
80 
160 
80 
80 
100 
Pounds 
160 
160 
260 
43.8 
Oats 
45.0 
Wheat - 
21.0 
Timothy 
9 
Corn 
160 
160 
120 
160 
-j5- 
80 
100 
80 
240 
240 
270 
320 
35.6 
Oats 
38.3 
Wheat 
50 
14.4 
14 
Corn 
80 
43.8 
Oats 
41.0 
Wheat . 
120 
160 
160 
120 
80 
80 
60 
160 
160 
120 
240 
240 
200 
50 
160 
80 
80 
160 
160 
160 
160 
80 
80 
160 
80 
80 
160 
100 
430 
240 
240 
330 
320 
320 
345 
320 
320 
430 
400 
400 
510 
Tons 
4.0 
26.1 
6 
42.8 
Oats 
48.2 
Wheat . 
60 
25.4 
17 
80 
80 
100 
80 
80 
100 
80 
80 
100 
45.9 
Oats 
51.1 
Wheat . 
25 
24.3 
11 
46.6 
Oats 
51.2 
Wheat 
50 
28.1 
12 
Corn 
46.8 
Oats 
50.7 
Wheat 
50 
28.9 
20 
Corn.. 
4.0 
43.0 
Oats 
39.5 
Wheat 
4.0 
4.0 
19.7 
Clover 
Timothy 
18 
8.0 
8.0 
62.6 
Oats 
46.6 
Wheat 
8.0 
8.0 
24.2 
