OATS IN THE (1REAT PLAINS AREA. 
37 
Table XVIII. — Yields and cost of production of oats by different methods at the Ama- 
rillo Field Station, 1909 to 1914, inclusive. 
Treatment and previous 
Number 
of plats 
a\ eraged. 
Yield per acre (bushels). 
crop. 
1909 
1910 
1911 
1912 
1913 
1914 
Average. 
Fall plowed : 
Wheal 
3 
1 
1 
20.7 
32.2 
31.3 
14.3 


26.4 
27.5 
35.6 
9.7 
It. 1 
9.1 
6.8 
2.5 
7.2 
19.0 
30.9 
26.9 
17.2 
Oats 
17.9 
Barley 
18.4 
5 
28.7 
8.6 
28.5 
10.5 
6.0 
23.0 
17.6 
Spring plowed: 
Wheat 
I 
1 
2 
23.4 
20.0 
21.9 



35.7 
28.2 
36.0 
9.7 
9.7 
17.2 
3.1 

1.4 
7.5 
29.4 
21.1 
13.2 
Oats 
14.6 
Corn 
16.3 
4 
21.8 
34.0 
13.5 
1.5 
19.8 
15.1 
Bubsoiled : Oats 
Listed: Oats 
1 
1 
28.1 
29.7 


19.2 
26.8 
8.8 
11.6 
4.1 
6.9 
30.6 
26.9 
15.1 
17.0 
Disked: 
Corn 
6 
2 
2 
22.7 
19.3 
16.5 



28.7 
25.9 
26.7 
14.3 
11.9 
8.2 
3.4 
1.9 
1.8 
33.4 
28.8 
28.8 
17. 1 
Milo 
14.6 
Kafir 
13.3 
10 
20.8 
27.7 
12.6 
2.8 
31.1 
15.8 
Green manure: 
Rye 
1 
1 
31.9 
27.5 
5.0 
8.4 
18.0 
25.9 
13.8 
15.0 
5.6 
6.5 
22.2 
26.9 
16. 1 
18.4 
2 
29.7 
6.7 
22.0 
14.4 
6.1 
24.6 
17.3 
2 
32.5 
24.4 
36.2 
17.7 
17.4 
37.1 
27.6 
24.8 
4.2 
28.7 
12.7 
4.9 
27.4 
17.1 
Summary of Yields and Digest of Cost. 
Tillage treatment. 
Previous crop. 
Yields, values, 
etc. (average 
per acre). 
Fall 
plowed 
(5 
plats). 
Spring 
plowed 
(4 
plats). 
Disked 
(10 
plats). 
Listed 
(1 
plat). 
Sub- 
soiled 
(1 
plat). 
Green 
ma- 
nured 
(2 
plats). 
Sum- 
mer 
tilled 
(2 
plats). 
Corn 
, (8 
plats). 
Small 
grain 
(9 
plats). 
Milo 
(2 
plats). 
Kafir 
(2 
plats). 
Yields of grain: 
1908 .bush.. 
1909... do... 
1911. ..do... 
1912. ..do... 
1913. ..do... 
1914... do... 
28.7 
8.6 
28.5 
10.5 
6.0 
23.0 
21.8 

34.0 
13.5 
1.5 
19.8 
20.8 

27.7 
12.6 
2.8 
31.1 
29.7 

26.8 
11.6 
6.9 
26.9 
28.1 

19.2 
8.8 
4.1 
30.6 
29.7 
6.7 
22.0 
14.4 
6.1 
24.6 
32.5 
24.4 
36.2 
17.7 
17.4 
37.1 
22.5 

30.5 
15.0 
2.9 
30.3 
27.2 
4.8 
28.0 
10.2 
4.9 
23.2 
19.3 

25.9 
11.9 
1.9 
28.8 
16.5 

26.7 
8.2 
1.8 
26.8 
Average . . 
17.6 
15.1 
15.8 
17.0 
15.1 
17.3 
27.6 
16.9 
16.4 
14.6 
13.3 
Crop value, cost 
ofproduction, 
etc.: 
Value 
S5.28 
6.31 
S4.53 
5.84 
84.74 
4.50 
85.10 
5.30 
$4.53 
6.92 
$5.19 
14.36 
$8.28 
11.25 
Cost 
Profit or 
loss 
-1.03 
-1.31 
.24 
- .20 
-2.39 
-9.17 
-2. 97 
