CROP ROTATION IN RELATION TO SOIL. PRODUCTIVITY 
33 
Table 31. — Yields of corn, oats and wheat, and gains per acre, on plot 11 in rotation 
for 25 years, 1894-1918, Wooster, Ohio 
Yields and gains per acre (bushels) 
Years 
Corn 
Oats 
Wheat 
Plot 11 1 
ferti- 
lized 
Plot 11 
if unfer- 
tilized 
Gain 
due to 
ferti- 
lizer 
Plot 11 
ferti- 
lized 
Plot 11 
if unfer- 
tilized 
Gain 
due to 
ferti- 
lizer 
Plot 11 
ferti- 
lized 
Plot 11 
if unfer- 
tilized 
Gain 
due to 
ferti- 
lizer 
1894.. 
20.46 
42.14 
68.57 
33.89 
41.36 
20.26 
31.69 
53.86 
24.32 
22.68 
0.20 
10.45 
14.71 
9.57 
18.68 
33.28 
37.57 
37.34 
61.56 
48.28 
23.20 
26.66 
22.09 
43.54 
37.96 
10.08 
10.91 
15.25 
18.02 
10.32 
18.54 
10.83 
9.04 
30.58 
33.67 
18.96 
3.00 
1.28 
9.83 
15.96 
-0.42 
1895 
7.83 
1896 
7.76 
1897 
20.75 
1898 
17.71 
5-year average 
41.28 
30.56 
10.72 
43.61 
30.69 
12.92 
20.53 
9.80 
10. 73 
1899 
37.93 
46.68 
75.89 
70.35 
18.64 
24.37 
24.99 
48.88 
49.59 
4.41 
13.56 
21.69 
27.01 
20.76 
14.23 
58.60 
43.12 
57.03 
60.62 
43.05 
36.09 
18.80 
30.78 
36.51 
21.56 
22.51 
24.32 
26.25 
24.11 
21.49 
22.83 
11.67 
27.25 
37.33 
38.25 
5.64 
1.00 
5.94 
10.36 
20. 30 
17.19 
1900 
10.67 
1901 
21.31 
1902 
26.97 
1903 
17.95 
49.90 
30.45 
19.45 
52.48 
28.74 
23.74 
27.47 
. 8.65 
18.82 
1904 
1905 
1906 
1907 
1908 ..... 
36.07 
52.81 
72.75 
64.39 
44.64 
14.37 
31.15 
42.02 
36.20 
26.72 
21.70 
21.66 
30.73 
28.19 
17.92 
66.41 
61.40 
52.90 
32.97 
53. 75 
46.88 
39.53 
26.92 
18.13 
44.24 
19. 53 
21.87 
25.98 
14.84 
9.51 
26.83 
24.75 
42.70 
29.79 
41.45 
8.91 
4.38 
21.01 
13.22 
21.42 
17.92 
20.37 
21.69 
16.57 
20.03 
5-year average 
54.13 
30.09 
24.04 
53.49 
35.14 
18.35 
33.10 
13.78 
19.32 
1909 
38.25 
13.28 
76.36 
0) 
37.61 
17.94 
7.38 
41.55 
( 2 ) 
15.12 
20.31 
5.90 
34.81 
(') 
22.49 
53.60 
47.89 
36.79 
65.55 
24.22 
33.99 
34.81 
13.23 
33.29 
9.06 
19.61 
13.08 
23. 56 
32.26 
15.16 
34.17 
26.75 
22.00 
9.75 
39.46 
20.63 
7.79 
6.45 
0.97 
22.01 
13.54 
1910 
1911 
1912 
1913 
18.96 
15.55 
8.78 
17.45 
41.37 
20.49 
20.88 
45. 61 
24.88 
20.73 
26.43 
11.57 
14.86 
5-year average, 1914- 
1918 3 
46.34 
24.62 
21.72 
61.03 
40.14 
20.87 
33.06 
13.88 
19.18 
25-year average 
46.60 
27.24 
19.36 
51.24 
31.92 
19.32 
28.12 
11.54 
16.58 
1 Fertilized with complete chemical fertilizer. 
2 Crop injured by white grub. 
' Annual yields not published. 
(See Table 28.) 
60635—261 
-0 
