REQUIREMENTS OF FIELD CROPS. 9 
of manure hauled per acre, greater adaptability of land to corn 
production, and better management and skill in growing corn. 
The harvesting labor is not influenced so much by the size of the 
machinery used as by variations in yield and the distance that the 
corn is hauled from the field to the silo. The influence of distance 
does not appear in the average figures because the average distance 
is likely to be very much the same for the various States, but the 
influence of yield on harvest labor is clearly shown by the difference 
between the New York and the Minnesota figures. 
Table 3. — Corn silage: Labor and material requirements per acre (271 records). 
c/5 
o 
o 
05 
Man labor. 
Horse labor. 
Fuel. 
d <d 
2 
03 f» 
03 
03 
0«M 
Region. 
o 
% 
A 
A 
^ 
bo 
03 
CD 
> 
o 
O <D 
CD 
£ 
03 
"3 
■*> c» 
o 
1 
> 
3 
•6 
CD 
CD 
a 
03 
1 
03 
3 
«3 
PI § o 
g a** 
fc 
< 
fr 
w 
H 
F4 
w 
H 
m 
S 
^ 
o 
O 
H 
Hh 
Terns. 
Hrs. 
Hrs. 
Hrs. 
Hrs. 
Hrs. 
Hrs. 
Lbs. 
Loads. 
Lbs. 
Gals. 
Lbs. 
£6s. 
30 
97 
55 
83 
6 
7.1 
9.4 
9.8 
13.0 
8.3 
13.4 
14.5 
12.9 
26.5 
10.2 
15.6 
15.0 
25.6 
23.6 
30.1 
27.9 
52.1 
51.3 
36.6 
34.1 
31.9 
45.3 
38.7 
15.7 
19.5 
20.0 
19.6 
22.5 
52.3 
53.6 
51.9 
64.9 
61.2 
14.0 
11.4 
9.9 
24.2 
7.8 
3.6 
4.7 
2.2 
6.1 
6.2 
219."6 
"¥. 5 
2.8 
2.1 
22.0 
20.5 
14.0 
16.0 
3.3 
3.6 
3.6 
4.1 
2.2 
76 
84 
80 
84 
Ohio 
27.2 24.1 
79 
a Excluding interest on land. 
The cost for seed is very small compared with the seed cost for 
many other farm crops. The range from 10 pounds per acre in 
Iowa to 24 pounds in New York is therefore not of much importance 
from the cost standpoint but is of interest in that it indicates dif- 
ferent practices in the two States. 
Much of the silage corn is cut and bound with the binder. Some 
of it is cut loose, but the percentage of the corn handled in this way 
is extremely small. The quantities of twine given in these records 
can therefore be considered as fair figures to use when determining 
the cost of corn harvested with the binder. 
Corn responds very well to manuring and therefore receives most 
of the manure produced on the farms where it is grown. On the 
Wisconsin farms the records show that although corn does not 
occupy more than about one-fourth of the crop area it receives over 
half of the available manure. 
Gasoline, coal, and wood were all used for fuel in filling silos, but 
the number of farmers using wood was so small that it disappears in 
an average. Because of the fact that the Ohio records give only 
the value of the fuel used and not the quantity it was impossible to 
determine the quantity of fuel for that State, but by comparing 
values it would seem that the fuel consumed would approximate 
that consumed in New York. 
60765°— 21— Bull. 1000 2 
