BARLEY IN THE GREAT PLAINS AREA. 
15 
Table VII. — Yields and cost, of production of barky by (liferent methods at the Williston 
Field Station, 1910 to 1914, inclusive. 
Treatment and previous crop. 
Number 
of 
plats 
averaged. 
Yield per acre (bushels). 
1910 
1911 
1912 
1913 
1914 
Average. 
1 
0.6 
3.3 
46.1 
14.8 
17.4 
22.0 
1 
1 
.8 
.2 
5.8 
4.6 
31.7 
30.0 
14.4 
15.6 
21.4 
36.7 
14.8 
Oats 
17.4 
2 
.5 
5.2 
30.9 
15.0 
29.1 
16.1 
1 
1 
.4 
5.2 
4.2 
12.7 
50.8 
54.4 
28.6 
21.9 
53.5 
49.7 
27.5 
28.8 
1.4 
6.1 
42.6 
19.1 
36.7 
21.2 
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: 
1910 bushels. . 
1911 do 
0.6 
3.3 
46.1 
14.8 
22.0 
0.5 
5.2 
30.9 
15.0 
29.1 
0.4 
4.2 
50.8 
28.6 
53.5 
5.2 
12.7 
54.4 
21.9 
49.7 
0.5 
4.6 
35.9 
14.9 
26.7 
0.4 
4 2 
1912 do 
50 8 
1913 do. . . . 
1914 do.... 
28.6 
53.5 
Average 
17.4 
16.1 
27.5 
28.8 
16.5 
27.5 
Crop value, cost of production, etc.: 
Value 
$7.13 
6.46 
$6.60 
5.99 
$11.28 
4.65 
$11.81 
11.40 
Cost 
Profit 
.67 
.61 
6.63 
.41 
DICKINSON FIELD STATION. 
The results of six years are available from Dickinson, N. Dak. 
The crop of 1912 was destroyed by hail before maturity, and as failure 
from this cause could not be overcome by cultural methods it is 
not included in determining the average. Five of the years studied 
produced good crops of barley. In the remaining year the average 
yield was small, but the variation between the results from different 
methods of preparation was wide. 
The results attendant upon the fall and spring plowing of barley 
stubble and of growing barley on either spring-plowed oat stubble or 
barley stubble have been largely dependent upon the season. The 
seasonal differences have equalized each other until, when the re- 
sults of the five years are averaged, little choice is to be made between 
them. Summer tillage increased the crop an average of about 7 
bushels, bringing it up to 32.5 bushels per acre. Disked corn ground, 
however, brought the average yield up to 37.4 bushels per acre and 
gave a higher yield than summer tillage five years out of six. 
