12 
BULLETIN" 943, U. S. DEPARTMENT OF AGRICULTURE. 
In Grand Forks County, X. Dak., and in Clay and Traverse Coun- 
ties, Minn., a period of moist, hot weather occurred just prior to 
harvest time, resulting in wheat rust, which reduced wheat yields 
appreciably in these counties. 
It will be noted (Table V) that the largest number of farms in the 
spring-wheat districts are included in the group having a yield of 
from 5 to 10 bushels per acre, while the largest number in the winter 
wheat districts come within the group having a yield of from 15 to 
20 bushels. 
The average 1919 yield per acre for the farms included in this study 
was determined by dividing the total production by the total harvested 
acreage. The costs presented in this bulletin are based on the actual 
vields obtained on these farms. 
Table Y.— 
Annual 
yields, 
spring 
and vjinter tvheat. 
10-year 
State 
aver- 
age. 
9 or 10 
year 
county 
aver- 
age. 
Aver- 
age for 
farms 
vasited, 
1919. 
Range in yield per acre. 
Region. 
Under 
Shush. 
5 to 10 
hush. 
10 to 15 
bush. 
15 to 20 
bush. 
20 to 25 
bush. 
25 bush, 
and 
over. 
SPRING WHEAT. 
Xorth Dakota 
10.6 
No. of 
farms. 
No. of 
farms. 
No. of 
farms. 
No. of 
farms. 
No. of 
farms. 
No of 
farms. 
Grand Forks County 
12.9 
9.2 
9 8 
4.4 
1 
25 
16 
14 
20 
2 
South Dakota 
11.3 
Spink County 
10.8 
9.9 
24 
13 
2 
14.1 
Clay County 
13.5 
11.8 
8.1 
8.4 
I 
26 
32 
9 
9 
1 
Traverse County 
Total spring "wheat 
29 
15 
112 
57 
51 
26 
I 
Per cent of total 
WINTER WHEAT. 
13.8 
Ford County . ... 
12.6 
12.9 
14.7 
13.3 
13.9 
12.7 
3 
\ 
7 
4 
8 
6 
16 
17 
10 
10 
10 
6 
1 
Pawnee County 
Missouri 
14.3 
Saline County 
15.7 
15.8 
15.2 
16.3 
19.2 
19.6 
3 
7 
12 
17 
12 
7 
12 
22 
1 
St. Charles County 
2 
2 
Nebraska 
16.0 
14.1 
21.1 
19.5 
10.8 
18.1 
18.1 
15 
13 
6 
2 
2 
17 
11 
Saline County 
i2 
5 
Keith County 
2 
3 
4 
1 
39 
14 
69 
24 
101 
36 
65 
23 
6 
Per cent of total . 
2 
1 
REQUIREMENTS OF PRODUCTION. 
In arrivhig at the cost of wheat production the following elements 
of cost have been cohsidered : 
Labor, which includes (1) all direct man and horse farm labor, and 
(2) contract labor, includmg such items as marketmg wheat at a fixed 
charge per bushel and various labor operations in growing the wheat 
crop, where done at a contract rate per acre. 
Materials, includmg seed wheat (with cost of treating seed); barn- 
yard manure and straw, fertilizer and twine. 
