TRACTORS AND HORSES IN THE WINTER WHEAT BELT. 39 
$1,025, or $2.91 per crop acre. The cost of using the tractor was 47 
per cent of the total. Table 46 shows these items for the farms of 
different sizes in each area. In the southern and western areas 
the cost of using the tractor was 50 per cent and in the northern 
area 41 per cent of the total cost. 
While the total cost of power ....- 
increases with the size of the farm Fiabe at 500 Dollars 1500 2000 
in each area the average cost per Less than\60 
crop acre for power was higher on 
the small farms than on the large 320-399. 
ones. In general both tractors 400-479... 
and work stock were utilized more 4); 
fully on the larger farms (see = 
Tables 11 and 23) and since on the 
average the cost per unit of work  Lessthan|60. 
SOUTHERN AREA 
done with either form of power 349-319” 
decreased as the amount of work 320-399. 
done annually increased, the total 
cost of power was proportionally  ¢40-799 
less on the large farms. Figure 14 800andover 
shows graphically the cost of power : 
on farms of different sizes. WESTERN AREA 
On many of the farms more work  [tegsthani¢o J 
stock than necessary were still 160-239... 
being kept and the cost per farm 355-399 
of keeping work stock would have 400-479 
been reduced by an average of 7 agains 
about $115 (see p. 47) if they had 
been sold. Likewise, if the tractor NORTHERN AREA 
work had been done with machines 354 Farms _—_—»< [oa 
purchased at current prices the ALL AREAS 2 
cost would, on the average, be ® 
something like 25 per cent lower 
than the figures shown. 
TABLE 46.—Cost of power for drawbar work on farms of different sizes, 1921. 
emus //orses c— 7Jrocrors 
Fig. 14.—Cost of power for drawbar work, 1921. 
boar Average | Costof | Cost of : Z | Per cent 
= a | Number size Keeping | tractor Total Cost per | tractor 
Size of farm (crop acres). of (crop eaekes-tacdatec | Coe crop eost is 
| farms. acTes). stock. |barwork.) Y@!- acre. | of total. 
Southern area: 
WSS GMATTAGO! S25 e228 T 20 130 $350 307 $757 | $5. 82 54 
GU CODA OE Re ee ket | 36 202 542 477 1,019 | 5. 04 47 
PAAR SE see ee 34 278 614 596 1,210 4.35 49 
a7. ape ee ee ee 18 359 667 769 1, 436 4.00 Be 
cli \ ite ee es | 7 415 986 855 1,H1 4.44 46 
Ae A OVOr 3 2 Fe { 5 41 742 1, 022 | 1, 764 3. 26 58 
Total and average......_. 120 262 583 588 1,171 4,47 | 50 
Western area: Pa et an se 
UL ea Ne Ee iG 219 410 256 666 3. 04 38 
PAM EOI see a) k 17 281 406 366 772 2.75 47 
TE DE eS ee 18 350 395 433 828 2.37 52 
IUD 7 PR 19 44] 362 521 883 2. 00 59 
ie UN Se sy! 22 555 670 | 658 | 1,328 2.39 50 
TEL ne ee 14 703 578 | 667 1,245 1.77 x 
muscu evers 2 22'S: 12 1,054 | 843 | 47 1, 390 1. 32 39 
Total and average.....__. 107 516 | Boe 5 1,042 2.02 50 
Northern area: Se SS ee a es 
ess thaw 160.6 5.22 io 10 135 | 333 260 593 4.39 44 
i 27 202 417 279 | 696 3.45 | 40 
“1 iL! See ee 46 276 461 345 | 806 2.92 43 
Ae 29 | 369 556 422 978 2.65 43 
UST LY a ae 7 438 793 373 | 1, 166 2.66 32 
2 a ee 8 585 1,016— 550 | 1, 566 2.68 | 35 
Total and average....___- 127 299 517 | 357 874 2.92 41 
