OATS IN THE GREAT PLAINS AREA. 
27 
difference is to be observed between the results following the use of 
peas and of rye for this purpose. 
Table XIII. — Yields and cost of production of oats by different methods at the North 
Platte Field Station, 1907 to 1914, inclusive. 
Treatment and previous crop. 
Number 
of plats 
averaged. 
1907 
1908 
1909 
1910 
1911 
1912 
1913 
1911 
Average. 
Fall plowed : 
\V boat 
4 
1 
1 
30.9 
36.0 
23.1 
61.0 
68.5 
49.1 
24.4 
24.1 
20.0 
7.3 
11.9 
6.6 













9.7 
10.6 
14.7 













7.9 
14.7 
10.0 
17.7 
Oats 
20.7 
15.4 
6 
30.5 
60.2 
23.6 
7.9 
10.7 
9.4 
17.8 
Spring plowed: 
Wheat 
2 
1 
2 
1 
34.5 
30.0 
34.6 
30.0 
47.7 
34.4 
54.3 
45.0 
32.8 
31.3 
31.3 
28.8 
12.5 
11.3 
12.2 
8.1 
18.6 
18.7 
14.4 
12.5 
9.1 
5.0 
9.7 
7.8 
19.4 
Oats 
16.3 
19.6 
16.5 
6 
33.0 
47.2 
31.4 
11.5 
16.2 
8.4 
18.5 
Sod breaking: 
Alfalfa 
1 
1 
24.0 
22.2 
36.8 
40.0 
14.4 
16.6 
2.5 
4.7 
12.5 
7.2 
7.2 
5.6 
12.2 
12.0 
Total or average 
2 
23.1 
38.4 
15.5 
3.6 
9.9 
6.4 
12.1 
1 
40.6 
53.4 
22.5 
11.9 
6.6 
7.8 
17.9 
Green manured: 
Rve 
2 
2 
30.5 
28.5 
73.8 
75.8 
a32.5 
34.8 
16.4 
14.6 
10.3 
13.8 
10.0 
9.7 
21.7 
22.2 
4 
29.5 
74.8 
34.0 
15.5 
12.0 
9.9 
22.0 
4 
34.3 
87.1 
37.3 
26.2 
19.6 
14.9 
27.4 
Average of all 36 plats 
31.4 
61.8 
28.4 
13.1 
13.7 
9.8 
19.8 
Summary of Yields and 
Digest of Cost. 
Tillage treatment. 
Previous crop. 
Yields, values, etc. 
(average per acre). 
FaU 
plowed 
(6 plats). 
Spring 
plowed 
(6 plats). 
Disked 
(lplat). 
Green 
manured 
(4 plats). 
Summer 
tilled 
(4 plats). 
Sod 
(2 plats). 
Corn 
(3 plats). 
Small 
grain 
(9 plats). 
Sor- 
ghum 
(1 plat). 
Yields of grain: 
1907... bushels.. 
1908 do.... 
1909 do 
1910 do.... 
1911 do.... 
1912 do.... 
1913 do.... 
1914 do.... 
30.5 
60.2 
23.6 
7.9 

10.7 

9.4 
33.0 
47.2 
31.4 
11.5 

16.2 

8.4 
40.6 
53.4 
22.5 
11.9 

6.6 

7.8 
29.5 
74.8 
34.0 
15.5 

12.0 

9.9 
34.3 
87.1 
37.3 
26.2 

19.6 

14.9 
23.1 
38.4 
15.5 
3.6 

9.9 

6.4 
36.6 
54.0 
28.3 
12.1 

11.8 

9.1 
31.3 
54.6 
26.5 
9.3 

13.3 

8.8 
30.0 
45.0 
28.8 
8.1 

12.5 

7.8 
Average 
17.8 
18.5 17.9 
22.0 
27.4 
12.1 
19.0 
18.0 
16.5 
Crop value, cost of 
production, etc.: 
$5.34 
6.31 
$5.55 
5.84 
$5. 37 
4.50 
$6.60 
14.36 
$8.22 
11.25 
Cost 

- .97 
- .29 
.87 
-7.76 
-3.03 
a Only 1 plat in 1909. 
The heaviest yields have been those following summer tillage, 
exceeded only by disked corn ground in 1908. But when the cost of 
