16 
(BULLETIN 1304, U. S. DEPARTMENT OF AGRICULTURE 
Table 7. — Yields of oats under different cultural methods at the Akron Field Station 
for the 15 years from 1909 to 1923, inclusive 
Treatment and previous 
crop 
Plats 
aver- 
aged 
Yields per acre (bushels) 
1909 
1910 
1911 
1912 
1913 
1914 
1915 
1916 
1917 
1918 
1919 
1920 
1921 
1922 
1923 
Aver- 
age 
Fall plowed: 
Wheat 
3 
1 
1 
19.3 
14.1 
20.8 
14.1 
8.0 
10.2 
10.5 
15.9 
15.9 
47.7 
46.9 
37.2 
7.6 
.6 
.6 
35.5 
36.9 
39.1 
55.9 
57.2 
57.2 
2.6 
7.2 
7.8 
25.8 
29.7 
28.8 



24.4 
32.8 
27.8 
21.2 
34.9 
36.3 
14.2 
14.7 
21.6 
10.1 
12.2 
12.5 
8.5 
9.7 
14.2 
19.8 
Oats 
21.4 
22.0 
Total or average.. _ 
5 
18.6 
12.1 
12.7 
45.5 
4.8 
36.5 
56.4 
4.6 
27.2 

26.7 
27.0 
15.8 
11.0 
9.9 
14.1 
16.7 
20.7 
20.6 
Spring plowed: 
Wheat 
1 
1 
2 
18.3 
21.0 
21.6 
14.8 
10.9 
20.8 
1.7 
46 9 
16.6 
6.6 
5.0 
47.5 
39.4 
49.4 
56.9 
56.9 
71.4 
2.2 
9.1 
12.7 
39.1 
38.1 
32.1 



11.6 
24.7 
17.4 
45.8 
39.0 
47.0 
6.6 
10.0 
11.4 
18.8 
19.7 
16.6 
22.7 
Oats 
4.4141.9 
5. 349. 6 
22.6 
Corn. 
25.4 
Total or average... 
4 
20.6 
16.8 
4.2 
47.0 
8.3 
46.4 
64.2 
9.2 
35.3 

17.8 
44.7 
9.9 
17.9 
18.1 
24.0 
Subsoiled: 
Oats. 
1 
1 
1 
1 
16.1 
15.6 
8.8 
20.2 
11.3 
11.1 
2.7 
2.2 
8.4 
5.3 


35.3 
54.7 
29.4 
27.5 

3.6 
1.9 
1.6 
30.3 
40.9 
30.6 
35.0 
57.5 
50.0 
49.1 
34.7 
4.1 
13.1 
1.6 

28.4 
31.3 
10.0 
3.4 

1.3 
30.0 
25.3 
50.9 
35.9 
42.8 
30.7 
19.1 
10.3 
10.6 
3.8 
6.6 
5.9 
1.6 
3.1 
12.8 
13.8 
6.1 
9.1 
20.7 
Listed: 
Oats 
21.2 
Sod breaking: 
Alfalfa 


10.9 
1.9 
13.7 
11.5 
Total or average.. . 
2 
14.5 
2.5 

.4 



28.5 
38.5 
25.0 
41.9 
40.3 
1.8 
7.3 
1.9 
7.2 
5.5 
32.8 
48.5 
37.8 
40.7 
40.5 
41.9 
68.5 
57.8 
69.2 
64.0 
.8 
18.0 
1.6 
10.2 
14.2 
6.7 
25.7 
17.8 
22.1 
17.1 

1.9 



6.4 
36.8 
7.2 
2.4 
7.6 
12.7 
Disked: 
Corn 
7 
1 
2 
2 
20.9 
16.1 
15.7 
14.6 
18.2 
5.0 
12.2 
6.7 
11.9 
3.1 
2.7 
5.4 
55.7 
41.3 
44.9 
45.7 
13.2 
11.3 
7.8 
5.8 
18.7 
12.8 
14.9 
13.1 
15.1 
15.2 
0) 
12.5 
24.2 
16.4 
Milo 
20.7 
Kafir - 
19.0 
Total or average... 
12 
18.6 
14.2 
.2 
38.2 
6.5 
45.0 
67.0 
14.7 
23.0 
1.1 
8.5 
51.0 
10.9 
16.6 
14.7 
22.0 
Green manured: 
1 
1 
1 
21.0 
22.0 
13.0 
20.0 
11.9 
5.2 
2.7 

3.9 
38.4 
38.4 
45.8 
5.0 
1.3 
5.0 
44.4 
38.1 
41.6 
76.6 
69.1 
76.6 
15.6 
8.1 
5.0 
37.2 
20.0 
21.3 
5.5 


17.5 
11.9 
23.8 
43.9 
56.3 
35.8 
17.8 
17.8 
4.1 
20.9 
18.1 
14.7 
15.1 
11.9 
7.6 
25.4 
21.7 
With sweet clover ... 
20.2 
Total or average... 
3 
18.7 
12.4 
2.2 
40.9 
3.8 
41.4 
74.1 
9.6 
26.2 
1.8 
17.7 
45.3 
13.2 
17.9 
11.5 
22.4 
Fallowed 
3 
28.9 
17.1 
7.1 
56.4 
16.5 
45.9 
79.2 
22.5 
35.4 
7.7 
31.8 
49.1 
24.3 
31.5 
23.9 
31.8 
Average of all 31 
plats 
19.4 
13.3 
4.0 
42.3 
6.6 
42.2 
64.3 
11.3 
26.2 
1.4 
16.9 
44.2 
13.1 
15.9 
14.4 
22.4 
i These two plats were on disked sorgo after 1922. 
The lowest yields were obtained following the breaking of sod in 
the alfalfa and bromegrass rotations. The 15-year average yield on 
bromegrass sod was only 11.5 bushels per acre and on alfalfa sod 
13.7 bushels. These reduced yields are largely due to the dry con- 
dition in which the sod crop leaves the soil. These plats often are 
the first in the field to suffer from drought. 
RESULTS WITH BARLEY 
Barley is represented by nine plats in the crop-rotation and culti- 
vation experiments. The annual and average yields of the seven 
methods under trial with this crop for the 15 years from 1909 to 1923, 
inclusive, are given in Table 8 and shown graphically in Figure 8. 
The average yield of the nine plats for the 15 years was 20.3 bushels 
per acre. The highest average yield was 55 bushels, in 1915; and 
the lowest was 4.3 bushels, in 1918. 
