REQUIREMENTS OF FIELD CROPS. 
37 
HOURS 
JAN. 
10 20 
FEB. 
10 20 
MAR 
10 20 
APR 
10 20 
MAY 
10 20 
JUN. 
10 20 
JUL. 
10 20 
AUG. 
10 20 
SEPT. 
10 20 
OCT. 
10 20 
NOV. 
10 20 
DEC. 
10 20 
HOURS- 
11 
10 
9 
8 
7 
6 
5 
4 
3 
2 
1 

HOURS 
11 
to 
9 
8 
7 
6 
5 
4 
3 
2 
1 

11 
10 
9 
8 
7 
6 
5 
4 
3 
2 
1 

HOURS 
11 
10 
9 
8 
7 
6 
5 
4 
3 
2 

MAN LABOR 
BARLEY 
BASED ON COST ACCOUNTING DATA 
FROM 
|| 
1 
1 
■ 
1 
1 
■ 
1 
_ 
■ 
■ 
■ 
■ 
| 23.2 | 7.7 
20.2 | 36.8 | 6.2 
2.6 | 3.3 
PERCENTACE DISTRIBUTION 
42.7 
15.4 
16.0 
23.6 
1.4 
.2 
.7 
HORSE LABOR 
L 
i 
II 
■ 
1 
lai 
■ 
ll 
10 20 
JAN. 
10 20 
FEB. 
10 20 
MAR. 
10 20 
APR. 
10 20 
MAY 
10 20 
JUN. 
10 20 
JUL. 
10 20 
AUG. 
1 
s 
) i 
EF 

T. 
1 
C 
)C 
>0 
T. 
1 
IS 
3 2 
O 

V. 
10 20 
DEC. 
Fig. 10.— Distribution of man labor and horse labor for 16 farms, representing the production of 175 acres 
of barley. Marketing labor not included. Black bars indicate total hours spent per acre during 10-day 
periods. 
