CROP PRODUCTION IN THE GREAT PLAINS AREA, 
11 
the crop on summer-tilled land. The increase in yield at all of these 
stations except Hays has been sufficient to justify the use of this 
method for winter wheat if the results are to be compared with those 
from wheat stubble plowed in the fall. 
At Akron the greatest profit has been realized from the growth 
of the crop on disked corn ground. At Hays land treated with the 
lister after harvest and land subsoiled have given decidedly the 
greatest profits. 
The yields following the plowing under of rye or peas for green 
manure have approached, but in no case equaled, those on summer- 
tilled land. The greater cost of the method removes it from com- 
petition with other methods. 
OATS. 
In Table IV are brought together for the several stations the 
average yields of oats and the cost of production data as grouped for 
study under different methods of preparation, showing the profit or 
loss per acre for the average crop for each method for which it has 
been computed at each station. 
Table IV. — Average yields and digest of cost of production per acre of oats by different 
methods of tillage at fourteen stations in the Great Plains area. 
Points covered. 
Yields (bushels): 
Judith Basin.. 
Huntley 
Williston 
Dickinson 
Edgeley 
Hettinger 
Belle Fourche. 
Scottsbluff 
North Platte.. 
Akron 
Hays 
Garden City.. 
Dalhart 
Amarillo 
Cost of production. 
Profit or loss (— ): 
Judith Basin.. 
Huntley 
Williston 
Dickinson 
Edgeley 
Hettinger 
Belle Fourche. 
Scottsbluff 
North Platte.. 
Akron 
Hays 
Garden City... 
Dalhart 
Amarillo 
Fall 
plowed. 
49.9 
43.4 
33.5 
34.4 
32.2 
22.8 
16.1 
18.2 
17.8 
21.7 
20.7 
8.7 
4.5 
17.6 
3.31 
6.71 
3.74 
4.01 
3.35 
.53 
-1.48 
- .85 
- .97 
.20 
- .10 
-3.70 
-4.96 
Spring 
plowed. 
51.2 
49.2 
36.2 
36.9 
31.4 
32.0 
18.0 
22.2 
18.5 
23.9 
17.6 
6.0 
3.5 
15.1 
$5.84 
9.52 
8.92 
5.02 
5-23 
3.58 
3.76 
- .44 
.82 
- .29 
1.33 
- .56 
-4.04 
-4.79 
-1.31 
Disked. 
53.3 
53.0 
37.9 
47.5 
33.5 
35.1 
21.9 
26.3 
17.9 
20.5 
20.7 
8.8 
4.0 
15.8 
$4.50 
11.49 
11.40 
6.87 
9.75 
5.55 
6.03 
2.07 
3.39 
.87 
1.65 
1.71 
-1.86 
-3.30 
.24 
Listed. 
Subsoiled. 
49.9 
47.2 
18.8 
20.4 
21.9 
22.9 
12.8 
5-9 
17.0 
$5.30 
.34 
1.27 
1.57 
-1.46 
-3.53 
- .20 
49.5 
46.1 
17.5 
20.4 
16.9 
22.7 
9.2 
15.1 
$6.92 
7.93 
6.91 
-1.67 
- .80 
-1.85 
- .11 
-4.16 
Green 
manured. 
54.8 
58.6 
39.1 
44.0 
35.1 
22.2 
22.4 
28.7 
22.0 
19.9 
9.2 
.3 
17.3 
$14.36 
2.08 
3.22 
-2.63 
-1.16 
-3.83 
-7.70 
-7.64 
-5.75 
-7.76 
-11.60 
-14.27 
- 9.17 
Summer 
tilled. 
58.4 
59.2 
43.9 
49.9 
38.3 
32.1 
29.8 
38.2 
27.4 
28.7 
24.8 
12.8 
9.3 
27.6 
$11.25 
6.27 
6.51 
1.92 
3.72 
.24 
-1.62 
-2.31 
.21 
-3.03 
-2.64 
-3.81 
-7.41 
-8.46 
-2.97 
