COST AND UTILIZATION OF POWER ON FARMS. 



13 



cultivating, and harvesting, upon the amount of horse labor used in 

 caring for live stock and for miscellaneous work, and upon the 

 amount of work done with the tractor. 



Table 9. — Number of workstock, days' of horse labor, and days' work per head on farms 



of different sizes. 



Size of farm (crop acres). 



Number 

 of farms. 



Number 

 of work- 

 stock. 



Horse 



labor per 



farm per 



year, 



days. 



Days' 

 work per 

 head per 



year. 





7 

 28 

 71 

 56 

 47 

 36 

 19 

 22 



3.4 

 3.9 

 5.1 

 6.2 



7.4 



8.0 



9.3 



12.5 



203.2 

 239.4 

 319.0 

 416.5 

 449.6 

 532.9 

 587.6 

 1,070.1 



59.7 



80 to 119 



64.0 



120 to 159 



66.4 



160 to 199 



70.1 



200 to 239 



62.5 



240 to 279 



70.9 



280 to 319 



66.4 





91.7 







All 



286 



6.8 



451.5 



68.6 







The number of days' work per head, being dependent upon both 

 the entire amount of horse labor used on the farm and the number of 

 workstock kept, likewise showed great variations, ranging from less 

 than 40 to more than 100 days. The size of the farm in itself had 

 very little bearing on the number of days' work per horse. While the 

 average for the farms with 320 or more crop acres is considerably 

 higher than for the other sizes, the horses worked less than 70 days 

 per head on 6 of the 22 farms. Figure 2 shows the number of farms 

 with different amounts of work per horse during the year. 



Days Work per Horse 



Less than 40... 



40 - 59.9.. 



60 - 79.9.. 



80 " 99.9.. 

 100 and over. 



M 



Number of Farms 



3P 40 50 60 70 



M 



38 IflQ, 



Fig. 2.— Variation in number of days' work per horse 

 WORK DONE BY TRACTOR. 



The average number of days of drawbar and belt work on the 

 home farm and of custom work done by the tractors on farms of 

 different sizes are shown in Table 10. 



There was a larger percentage of small machines on the smaller 

 farms than on the larger ones, and to this extent the number of days 

 work per year is not a true index of the actual amount of work done 

 by the tractors on the farms of different sizes. The table does show, 

 however, the relative importance of the different classes of work. 

 The number of days of drawbar work on the home farm increases 

 quite regularly with the increase in the size of the farm, and on the 



