STANDARD DAY S WORK IN CENTRAL ILLINOIS. 
Table II. — Spring plowing with sulky plow. 
Width of 
plow. 
Number 
of horses. 
Number 
of reports. 
Acres per day- 
Average. 
Acreage most often 
reported. 
Inches. 
14 
16 
16 
3 
3 
4 
37 
355 
34 
2.96 
3.02 
3.34 
3 (21 reports). 
3 (221 reports). 
Scattering. 
This table also shows that for the comparatively few farmers 
using 14-inch sulky plows with three horses in spring plowing about 
3 acres is an average day's work. While theoretically the 16-inch 
plow should cover about 15 per cent more ground in the same length 
of time, this apparently has not been found true in practice. How-., 
ever, the fact that such a large percentage of the farmers use 16- 
inch plows shows that they are more satisfactory for this locality. 
The reports of the small number of farmers who use four horses 
on their sulky plows show that the fourth horse increases the ef- 
ficiency of the outfit by a little over 10 per cent. 
FALL PLOWING. 
The performance of 3- and 4-horse teams with 14-inch sulky plows 
and 3-, 4-, and 5-horse teams with 16-inch plows is given in Table III. 
The greater frequency of the 4-horse teams and even the use of 
some 5-horse teams is accounted for by the fact that plowing in 
the fall is usually about 1 inch deeper than in the spring, and also 
by the fact that the ground is generally dry and hard to turn. 
Table III. — Fall plowmg with sulky plow. 
Width of 
plow. 
Number 
of horses. 
Number 
of reports. 
Acres per day. 
Average. 
Acreage most often 
reported. 
Inches. 
14 
14 
16 
16 
16 
3 
4 
3 
4 
5 
16 
20 
198 
148 
16 
2.48 
2.75 
2.58 
2.89 
3.20 
2i (8 reports). 
3 (9 reports). 
2h (95 reports). 
3 "(7 6 reports). 
Scattering. 
On an average, outfits of the same size cover about a half acre 
less per day in the fall than in the spring, due not only to the more 
difficult conditions mentioned above, but also to the fact that the 
time spent in the field is about two-thirds of an hour less per day 
in the fall. As is the case in spring plowing, the 14-inch plow seems 
to cover practically as much ground per day as the 16-inch size, pro- 
vided both are drawn by the same number of horses. The addition 
