TRACTORS AND HORSES IN THE WINTER WHEAT BELT. 55% 
In the southern and western areas the hours of work per horse were 
greater on these farms than on the tractor farms, but as stated on 
e 26, this was largely due to the large number of surplus work 
stock kept on the tractor farms. 
TasLE 61.—Horse labor per head, and crop area per horse on farms without tractors. 
i 
| 
= | Horse labor Horse labor} Crop acres | Crop acres 
Number of per crop | per horse | per neces- 
acre. | kept. sary horse. 
Area. per head 
farms. per year. 
Fic. 16.—Two-bottom lister drawn by six horses. On the farms where tractors were not used, more 
horse labor was used for plowing and listing than for any other class of work. 
COST OF KEEPING WORK STOCK. 
Table 62 shows the annual cost per head of keeping the work stock. 
The costs were computed in the same manner as the corresponding 
costs on the tractor farms. 
TABLE 62.—Annual cost per head of keeping work stock on farms without tractors. 
r Cost per head. es Net 
eee | Manure olt | cost 
Area. | ber of l : 
| farms. | Har- | Shoe-| Veteri- | Inter-| Depre- | credit. | credit. | per 
Feed. | Chores. ness.| ing. | mary. | est. | ciation. [head. 
Southern........._. 26 | $59.34 | $7.41 |$4.35 |$0.01 | $0.80 |$8.86| $7.61] $3.00] $1.85 |$s3.53 
Western............ 31| 34.44] 7.02| 4.30|0.00| 0.17] 5.85| 7.05{ 1.50] 3.58| 53.75 
Northern........... 23} 42.87] 9.95 | 3.62] 0.19] 0.33 /.9.09) 5.55} 500 1.30 | 65.30 
eee eS | eee ee Fae ES ee Pe eee oe ee 
Total......... 85 | 44.02 | 7.97 | 4.12 | 0.06 | 0.40 | 7.64 | 6.79| 294| 243 | 65.63 
