AN APPKAISAL OF POWER USED OX FABMS 
59 
Table VII. — Summary of icork factors for operations ivith field implements in the 
United States — Continued 
Operation or implement 
Power 
unit 
(number 
of horses) 
Daily 
dutv per 
foot of 
width 
Range of reported widths 
Most 
usual 
width 
per horse 
Potato planter: 
1-man . 
} ^ 
2 
2 
3 
1 
2 
2 
1 
2 
1 
2 
3 
4 
5 
4 
i 
3 
1 
2 
Acres 
( 2.47 
\ 2.20 
1.15 
1.36 
1.46 
1.15 
1.30 
1.68 
1.78 
1.90 
1.69 
2.06 
1.79 
2.08 
2.18 
2.03 
2.13 
2.23 
2.09 
2.5 
2.0 
1.04 
1.45 
1.34 
24 to 32 inches between rows 
Feet 
2.33 
2-man . . . 
.do. -. 
2.33 
Lime spreader ... 
6 to 12 feet 
4.00 
Fertilizer drill 
5 to 10 feet 
3.00 
Do 
6 to 12 feet.. 
2.66 
11.00 
Do 
do 
6.00 
Mowine hay... ....... ... 
4 to 7 feet . 
2.50 
Raking hav 
6 to 12 feet 
9.00 
Do 
8 to 16 feet 
6.00 
Tedding hav . ..... .... 
6 to 8 feet . 
7.00 
Do 
6 to 10 feet 
4.25 
Grain binder... . . . 
4 to 7 feet 
2.00 
Do. 
5 to 8 feet . 
2.00 
Do 
do 
1.66 
Grain header.. 
10 to 12 feet 
3.00 
Do. 
-do. 
2.25 
Do 
12 to 14 feet 
2.33 
Corn binder .... 
Rows 36 to 48 inches '(average yields).. 
1.50 
Do 
■pTnapsark- sprayer 
Wheelbarrow seed sower .. 
10 to 16 feet 
Hand corn planter 
36 to 48 inches between rows 
Table VIII. — Approximate average man-hour of labor per acre required for crop 
production in various parts of the United States 
[The data contained in this table were secured partly from estimates made by the farm management 
departments of a number of the State agricultural colleges, and partly from Yearbook Separate 876, 
U. S. Department of .\griculture, and other farm management studies] 
Area 
1 
c 
6 
11 
02 
li 
Is 
11 
l| 
1. 
1 
1 
, 
g 
3 
1 
■3 
-a 

New England 
New York . 
100 
66 
69 
50 
50 
57 
46 
100 
58 
1 
42 \ 
24 i 
1 
10 
10 
10 
12 
100 
100 
100 
106 
82 
! 
i 1 
( 
i t 1 
170 
A?. 
New Jersev 
1 ! 
190 
Pennsvlvnnifi 
49 
■■"57' 
60 
24 
23 
23 
12 
1 - 
j 
Virginia .. 
West Virginia 
8 
378 
363 
"'406' 
Kentuckv.. _ 
-- -| 
18 
South Carolina 
11 
20 
12 
16 
16 
116 
115 
137 
94 
47 
136 
125 
100 
112 
64 
Georgia 
40 
37 
38 
"Is" 
48 
15 
. 
19 
Louisiana... 
37 
46 

.Arkansas. 
16 
140 
Texas 
37 
Missouri 
24 
48 
30 
30 
26 
26 
20 
18 
16 
16 
12 
13 
30 
51 
32 
30 
32 
30 
28 
28 
26 
26 
23 
23 
15 
20 
19 
15 
12 
15 
15 
25 
Ohio. . 
10 
120 
80 
82 
58 
300 
110 
no 
150 
^Michigan 
40 
Wisconsin 
14 
12 
12 
8.4 
7.5 
4 
6 
5 
8 
5 
12 
13 
15 
140 
32 
155 
Indiana 
.... 
Illinois 
69 
Kansas 
8.5 
10 
7 
7 
7 
25 
5 
...... 
...... 
..i 
Eastern Nebraska 
1 
Dakotas 
32 

Colorado drv 
1 
75 
114 
124 
129 
119 
352 
41 
Northwest, irrigated. 
24. 
17 
7 
400 
30 
1 Does not include shelling or marketing. 
* Does not include marketing. 
3 Does not include baling or marketing. 
* Does not include ginning. 
