16 
BULLETIN 222, U. S. DEPARTMENT OF AGRICULTURE. 
Having at the same time the highest yield and the lowest cost of 
production, disked corn ground shows much the highest profit of any 
method under trial. The average profit from it was $10.68 per acre. 
Both spring and fall plowing show profits of about $4 per acre. The 
cost of summer tillage reduced the profits from it to $1.93 per acre. 
Table VIII. — Yields and cost of production of barley by different methods at the Dickinson 
Field Station, 1908 to 1914, inclusive. 
Treatment and previous 
Number 
of 
plats 
averaged. 
Yield per acre (bushels). 
crop. 
1908 
1909 
1910 
1911 
1912 
1913 
1914 
Average. 
Fallplowed: Barley 
1 
24.0 
39.0 
31.1 
1.2 
0) 
34.8 
20.2 
25.1 
Spring plowed: 
Barley 
1 
1 
33.5 
34.4 
39.8 
49.2 
28.3 
19.8 
9.6 
2.4 
C 1 ) 
0) 
19.2 
20.2 
25.0 
13.3 
25.9 
Oats 
23.2 
Total or average... 
2 
34.0 
44.5 
24.1 
6.0 
19.7 
19.2 
24.6 
1 
1 
45.6 
30.0 
53.8 
50.0 
28.6 
24.0 
12.3 
19.1 
0) 
(') 
44.8 
36.9 
39.1 
35.2 
37.4 
Summer tilled 
32.5 
Average of all 5 
plats 
33.5 
46.4 
26.4 
8.9 
0) 
31.2 
26.6 
28.8 
Summary of Yields and Digest of Cost. 
Tillage treatment. 
Previous crop. 
Yields, values, etc. (average per acre). 
Fall 
plowed 
(1 plat). 
Spring 
plowed 
(2 plats). 
Disked 
(1 plat). 
Summer 
tilled 
(1 plat). 
Small 
grain 
(3 plats). 
Corn 
(1 plat). 
Yields of grain: 
1908 bushels. . 
1909 do.... 
1910 do. . . . 
1911 do.... 
1912 do. . . . 
1913 do.... 
1914 do.... 
24.0 
39.0 
31.1 
1.2 
0) 
34.8 
20.2 
34.0 
44.5 
24.1 
6.0 
C 1 ) 
19.7 
19.2 
45.6 
53.8 
28.6 
12.3 
C 1 ) 
44.8 
39.1 
30.0 
50.0 
24.0 
19.1 
C 1 ) 
36.9 
35.2 
30.6 
42.7 
26.4 
4.4 
C 1 ) 
24.7 
19.5 
45.6 
53.8 
28.6 
12.3 
0) 
44.8 
39.1 
25.1 
24.6 
37.4 
32.5 
24.7 
37.4 
Crop value, cost of production, etc.: 
S10. 29 
6.46 
$10.09 
5.99 
$15.33 
4.65 
$13. 33 
Cost 
11.40 
Profit 
3.83 
4.10 
10.68 
1.93 
Destroyed by hail. 
EDGELEY FIELD STATION. 
The results of eight years of uninterrupted work are presented from 
Edgeley, N. Dak. In five of these years the yields were good, in one 
year they were light, and in two years the crops were practically 
failures from all methods under trial. No method showed any merit 
in overcoming the drought of these extreme years at this station. In 
five of the years under study the highest yield was obtained on disked 
corn ground. The maximum yield by this method was 37.1 bushels 
per acre, while the average for the eight years was 23.4 bushels per acre. 
