REQUIREMENTS OF FIELD CROPS. 
39 
HOURS 
JAN. 
10 20 
FEB. 
10 20 
MAR. 
10 20 
APR. 
10 20 
MAY 
10 20 
JUN. 
10 20 
JUL. 
10 20 
AUG. 
1020 
SEPT. 
10 20 
OCT. 
SO 20 
NOV 
10 2C 
'. DEC. 
10 20 
HOURS 
11 
10 
9 
8 
7 
6 
5 
4 
3 
2 
I 

HOURS 
11 
10 
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 
1 

MAN LABOR 
RYE 
BASED ON COST ACCOUNTING DATA 
FROM 
CENTRAL WISCONSIN 
- 
V 
1 SOWING 
1 HARVESTING 
'/////////, 
T* 
1 
?, 
?y, 
v> 
■ 
33.5 
36.7 | 13.7 | 14.4 
5.7 
PERCENTAGE DISTRIBUTION 
24.0 
37.9 
9.9 
20.9 
7.3 
HORSE LABOR 
F 
l 
1 
. 
■|, 
■ 
i 
1 
10 20 
JAN. 
10 20 
FEB. 
10 20 
MAR. 
10 20 
APR. 
10 20 
MAY 
10 20 
JUN. 
10 20 
JUL. 
1 
) 2 
u 

G. 
1 
S 
3 2 
EF 

T. 
10 20 
OCT. 
10 20 
NOV 
10 20 
DEC. 
Fig. 11.— Distribution of man labor and horse labor for 12 farms, with a production of 133 acres of rye. Black 
bars indicate total hours spent per acre during 10-day periods. 
