INPUT AS RELATED TO OUTPUT 
15 
Table 13. — Average time used in performmg certain operations, by hours of 
man labor per acre 
Man hours per acre 
Farms 
Hours per acre, 
plowing 
Hours per acre, 
harrowing 
Man 
] 1 oise 
Man Horse 
Number 
67 
11 
13 
14 
15 
5 
4 
2.13 
2.04 
2.03 
2.17 
2.21 
2.28 
2.05 
11.2 
10.8 
10.8 
11.5 
11.2 
12.5 
10.8 
0. 28 1 18 
3.0to3.4.. 
. 25 1 05 
3.5 to 3.9 
. 28 1. 19 
4.0 to 4.4... 
.28 1 14 
4.5 to 4.9 
.31 I 1.30 
5.0 to 5. 9 
.28 1.26 
6.0 to 6.9 
.23 1.00 
j 
Table 14. — Range in hours of man labor per acre used in plowing 
Hours per acre 
Farmers 
reporting 
each rate 
1.00 to 1.49 
I 
1.50 to 1.99 -. 
3 
2.00 to 2.49 
50 
2.50 to 2.99... 
11 
3.00 to 3.49... 
1 
3.50 to 3.99 
1 
Table 15. — Range in hours of man labor per acre used in performing various 
operations on wheat 
Number of farmers averaging each rate 
Hours per acre 
Drilling »f™r 
Cleaning 
seed 
Treating 
seed 
Weeding 
o.oi too.09... : 
5 
18 
19 
3 
2 
2 
.10 to .19 
12 
16 
10 
4 
6 
.20 to .29 . 
33 
12 
.30to .39 
25 
■ 7 
.40 to .49 
1 2 
4 
.50 to .59... 
28 5 2 
4 
.60to .69 
22 1 
15 1 
3 
.70 to .79 
2 
.80 to .89 ... 
1 
1 
.90 to .99 
1.00 to 2.50 
3 
. 
1 Harrowing with spike-tooth before planting. 
The next step in the analysis should take up each operation in 
detail and determine what caused the variations in labor require- 
ments, and should then present the results in such a way that any 
farmer could tell what would be the most probable labor input for 
each operation using the particular combination of machinery, 
horses, and man power that he is using or is planning to use on 
his farm. Character of soil, size of fields, and topography would 
also have to be taken into account. 
As a further difficulty, probably a large part of the differences 
in labor input is due to variations in the intelligence and in- 
dustry of the workers. Just how to measure this remains to be 
worked out. 
It will be seen that, instead of being consolidated into group aver- 
ages, in all of this analysis each individual report must " stand on its 
