22 BULLETIN 1188, V. S. DEPARTMENT OF AGRICULTURE. 
Table 17. — Cultural practices on 49 farms in Montcalm County, Mich. — Potatoes. 1919. 
Operation. 
Manure 
Plow 
Plow, tractor 
Harrow: 
Spike 
Spike, tractor 
Spring 
Disk 
Disk, tractor l 
Rolling 
Floating 
Marking off 
Sprouting seed 
Treating seed 
Cutting seed 
Planting seed 
Planting by hand 
Cultivating: 
1 row, 1 horse 
1 row, 2 horses 
Spike tooth 
Spring tooth 
Spring tooth, tractor 
Rolling after planting. . . 
Hoe 
Spray 
Spray by hand 
Dust by hand 
Pick worms 
Dig 
Dig by hand 
Picking up 
Sort and grade 
Haul to barn 
Haul to market 
Haul to truck 
Farms. 
Num- 
ber. 
Per- 
cent- 
of 
total, 
Acres. 
Covered. 
472 
438 
70 
61.5 
36 
448.5 
60 
30 
233.5 
11 
447 
10 
73 
498 
61 
447 
426 
309.5 
337. 5 
66 
9 
16 
165 
365 
41 
7 
9 
474 
34 
508 
2 3,900 
2 26,231 
2 43,842 
2 1,135 
Per- 
cent- 
age 
of 
total. 
Most 
com- 
mon 
crew. 
2-3 
1-3 
1 
1-2 
1 
1-3 
1-3 
1 
1-2 
Rate per 
day (once 
over). 
1-1 
1 
1 
1-2 
1 
1-1 
1-2 
1-2 
1-3 
Times 
over. 
20.8 tons.. 
2 acres 
6 acres 
15.9 acres.. 
23.7 acres.. 
11.4 acres.. 
7.6 acres... 
1 6 acres . . . 
13..") acres.. 
9 acres 
16.7 acres.. 
600 bushels 
] 25 bushels 
21 bushels. 
5.1 acres... 
2. 2 acres... 
5.3 acres... 
5.3 acres .. 
16.4 acres.. 
8.5 acres... 
18 acres. .. 
16 acres. .. 
2.9 acres... 
14.2 acres.. 
3. 8 acres... 
7 acres 
3 acres 
2.3 acres... 
1 acre 
1.3 acres... 
234 bushels 
286 bushels 
159 bushels 
270 bushels 
Hours per 
acre. 
Man. 
Horse. 
10.6 
5.4 
1.7 
2.8 
2.5 
.6 
.8 
1.2 
1 
.4 
.7 
4.2 
3 
5.1 
8.5 
7.2 
1 
1.8 
1.1 
.6 
3.7 
2.4 
6.5 
2.1 
23.3 
6.3 
17.6 
17.7 
8.5 
7.1 
8.9 
4.3 
19.3 
13.4 
3.3 
1.6 
3.6 
1 
4.9 
14.3 
2.3 
4.7 
11.8 
16.8 
Normal time on one record— two on contract. 
a Bushels. 
