COST AND UTILIZATION OF POWER ON FARMS. 
61 
Table 49.— Daily duty of one man with horses at operations on luhich tractors were also 
used. N 
[Acres per day.] 
Operation . 
Madison 
Co., 
Ohio. 
Seneca 
Co., 
Ohio. 
Madison 
Co., 
Indiana. 
Mont- 
gomery 
Co., 
Indiana. 
Living- 
ston Co., 
Illinois. 
Knox 
Co., 
Illinois. 
AH. 
2.18 
1.88 
12. 16 
16.80 
14.05 
2.22 
2.33 
9.83 
16.00 
13. 36 
2.21 
1.92 
10.33 
15.21 
13.27 
2.61 
2.85 
14.30 
19. 93 
15. 88 
3.88 
3.60 
18.95 
38.09 
17.64 
3.94 
3.11 
18.80 
33.10 
17.61 
2.68 
2.65 
16.67 
26.28 
15.55 
The greater amount of work accomplished per man when plowing 
and fitting ground in the two Illinois areas was due to the use of 
larger teams and implements. A team of four horses is the common 
unit on the farms in these areas, while in Ohio and Indiana teams of 
three, and sometimes only two, horses are used with proportionally 
smaller implements. With the rate of doing work when using horses 
the same as given in the table the drawbar work which the average 
2-plow tractor did in 25.8 days and that which the average 3-plow 
tractor did in 20.2 days would have required 50 to 55 days for one 
man with horses. Thus the 2-plow machines saved on the average 
25 to 30 days of man labor during the year, and the 3-plow machines 
30 to 35 days. 
Since disks and harrows or other light implements were never used 
in combination when horses furnished the power, the operation of 
" disking in combination" as done with tractors is practically equiva- 
lent to the two separate operations of disking and harrowing or rolling 
as done with horses. In " Loading hay" and " Other work" done 
with the tractors as shown in Table 12, it is not possible to make a 
direct comparison of the man-labor requirements, but on the average 
the tractors probably saved not far from one day for each day of 
use. (See page — .) 
One man always operated both tractor and implement in plowing 
and other work of fitting ground. One man usually operated both 
tractor and binder in cutting grain, but on some farms a second man 
was used on the binder. 
The tractors did 85 per cent of the plowing on these farms and much 
of that done with horses was finishing up or plowing small and 
irregular fields. For such work 2 -horse or 3 -horse teams were generally 
used. If these tractor owners had done all their plowing with horses 
some of them probably would have used larger units, and the saving 
of man labor effected by the tractor would not have been as great as 
that indicated above. 
