$& BULLETIN 1377, U. S. DEPARTMENT OF AGRICULTURE 
Table 30. — Average yields of corn, oats, and wheat, and gains per acre, on plots 
2 and 3 in continuous culture for 25 years, 1891^-1918, Wooster, Ohio 
Yields and gains per acre (bushels) 
Years 
Corn 
Oats 
Wheat 
Plots 
2 and 3 
ferti- 
lized 
Plots 
2 and 3 
unfer- 
tilized 
Gain 
due to 
ferti- 
lizer 
Plots 
2 and 3 
ferti- 
lized 
Plots 
2 and 3 
unfer- 
tilized 
Gain 
due to 
ferti- 
lizer 
Plot 2 
ferti - 
lized 
Plot 2 
unfer- 
tilized 
Gain 
due to 
ferti- 
lizer 
1894 -. 
22.16 
37.09 
70.57 
26.23 
52.61 
18.41 
32.26 
52.05 
11.91 
30.56 
3.75 
4.83 
18.52 
14.32 
22.05 
31.09 
39.92 
41.80 
47.97 
41.64 
25.62 
33.78 
23.13 
29.67 
26.64 
5.47 
6.14 
18.67 
18.30 
15.00 
19.00 
14.83 
6.08 
32.83 
26.17 
13.54 
5.59 
1.18 
20.17 
11.82 
5.46 
1895 -. 
9.24 
1896 
4.90 
1897 
12.66 
1898. .- 
14.35 
41.74 
29.04 
12.70 
40.48 
27.77 
12.72 
19.78 
10.46 
9.32 
1899 .. 
40.32 
48.06 
49.82 
45. 40 
32.14 
20.95 
26.38 
26.46 
14.86 
8.02 
19.37 
21. 68- 
23.36 
30.54 
24.12 
45.47 
38.91 
39.45 
45.71 
21.91 
25.23 
20.09 
20.04 
20.78 
4.88 
20.24 
18.82 
19.41 
24.93 
17.03 
18.25 
18.00 
20.75 
26.00 
26.50 
2.94 
2.22 
9.80 
13.44 
12.44 
15.31 
1900... 
15.78 
1901.- 
10.95 
1902 
12.56 
1903.-. -- 
14.06 
5-year average 
43.15 
19. 34 
23.81 
38.29 
18.20 
20.09 
21.90 
8.17 
13.73 
1904 
24.21 
45.57 
41.69 
26.83 
27.97 
4.24 
20.73 
21.59 
6.22 
12.66 
19.97 
24.84 
20.10 
20.61 
15.31 
56.49 
48.55 
42.22 
28.17 
40.23 
31.49 
27.27 
16.61 
12.93 
17.49 
25.00 
21.28 
25.61 
15.24 
22.74 
8.37 
10. 25 
20.17 
19.33 
28.95 
4.01 
2.99 
9.64 
5.52 
8.85 
4.36 
1905 
7.26 
1906 
10.53 
1907.. 
13.81 
1908... -- 
20.10 
33.25 
13.08 
20.17 
43.13 
21.16 
21.97 
17.41 
6.20 
11.21 
1909 
30.61 
20.75 
41.00 
37.02 
28.73 
10.23 
6.26 
15.80 
12.60 
10.52 
20.38 
14.49 
25.20 
24.42 
18.21 
37.58 
36.21 
8.59 
58.09 
22.93 
17.07 
22.81 
1.40 
31.75 
11.21 
20.51 
13.40 
7.19 
26.34 
11.72 
27.25 
22.17 
14.67 
2.46 
19.83 
10.20 
6.75 
2.08 
.79 
7.44 
17.05 
1910.-- 
15.42 
1911.- 
12.59 
1.67 
1913 
12.39 
5-year average 
31.62 
11.08 
20.54 
32.68 
16.85 
15.83 
17.28 
5.45 
11.83 
5-year average, 1914- 
1918 ! 
29.62 
11.89 
17.73 
41.28 
20.32 
20.96 
22.32 
8.58 
13.74 
25-year average 
35.88 
16.88 
19.00 
39.17 
20.86 
18.31 
19.74 
7.77 
11.97 
1 Annual yields not published. 
