24 
BULLETIN 214, U. S. DEPARTMENT OF AGRICULTURE. 
Table XL — Yields and cost of production of spring wheat by different methods at the 
Belle Fourche Field Station, 1909 to 1914, inclusive. 
Treatment and previous crop. 
Number 
of plats 
averaged . 
Yield per acre (bushels). 
1909 
1910 
1911 
1912 
1913 
1914 
Average. 
Fall plowed: 
1 
2 
1 
23.6 
31.5 
23.3 









7.3 
9.8 
7.9 
6.3 
6.1 
4.8 
6.2 
Oats 
7.9 
Wheat 
6.0 
4 
27.5 
8.7 
5.8 
7.0 
3.0 
2.4 
2.8 






Spring plowed: 
1 
1 
1 
23.9 
26.1 
23.8 
5.6 
7.9 
6.2 
4.5 
6.0 
4.0 
6.2 
Oats 
7.1 
Wheat 
6.1 
3 
24.6 
2.7 
6.6 
4.8 
6.5 










1 
1 
28.7 
28.5 


3.8 
1.7 
.3 
9.5 
6.8 
6.8 
4.7 
7.5 
6.7 
Disked: 
10 
1 
1 
29.8 
27.5 
20.8 
10.3 
12.3 
9.4 
10.0 
11.3 
9.0 
9.0 
8.8 
Sorghum. 
6.6 
Total or average 
12 
28.9 
3.3 
10.4 
10.0 
8.8- 






Green manured: 
Rye 
Peas 
Sweet clover 
1 
1 
2 
30.6 
29.9 
24.5 
5.7 
1.3 

13.4 
13.5 
12.0 
13.8 
11.3 
13.9 
10.6 
9.3 
8.4 
Total or average 
4 
27.4 
1.8 
12.7 
13.2 
9.2 


5 
32.7 
4.3 
15.6 
16.1 
11.5 
28.7 
2.5 
10.8 
10.1 
8.7 
Summary of Yields and Digest of Cost. 
Tillage treatment. 
Previous crop. 
Yields, values, etc. 
(average per acre). 
Fall 
plowed 
(4 
plats). 
Spring 
plowed 
(3 
plats). 
Disked 
(12 
plats). 
Listed 
(lplat). 
Sub- 
soiled 
(1 
plat). 
Green 
ma- 
nured 
(4 
plats). 
Sum- 
mer 
tilled 
(5 
plats). 
Corn 
(12 
plats). 
Small 
grain 
(7 
plats). 
Pota- 
toes 
(1 
plat). 
Sor- 
ghum 
(1 
plat). 
Yields of grain: 
1909... bushels. 
1910 do.... 
1911 do.... 
1912 do.... 
1913 do.... 
1914 do.... 
27.5 



8.7 
5.8 
24.6 
2.7 


6.6 
4.8 
28.9 
3.3 


10.4 
10.0 
28.7 



9.5 
6.8 
28.5 



6.8 
4.7 
27.4 
1.8 


12.7 
13.2 
32.7 
4.3 


15.6 
16.1 
a 29. 3 
3.4 


9.7 
9.3 
27.6 
.7 


8.3 
5.5 
27.5 
1.7 


12.3 
11.3 
20.8 
.3 


9.4 
9.0 
Average 
7.0 
6.5 
8.8 
7.5 
6.7 
9.2 
11.5 
8.6 
7.0 
8.8 
6.6 
Crop value, cost of 
production, etc.: 
Value 
S4.90 
6.56 
S4.55 
6.09 
S6.16 
4.75 
S5.25 
5.55 
S4.69 
7.17 
S6.44 
14.61 
$8. 05 
11.50 
Cost 
-1.66 
-1.54 
1.41 
- .30 
-2.48 
-7.17 
-3.45 
Average of 11 plats. 
The only method that shows a profit here is disked corn ground. 
This, on account of the low cost of preparation, shows an average 
annual profit of $1.41 per acre. All other methods indicate the 
