COST OF PRODUCING WINTER WHEAT IN GREAT PLAINS. 31 
19 per cent of the acreage in Pawnee County, Kans., and on 60 per 
cent of the wheat acreage in Woodward County, Okla. The disk har- 
row was used in all districts visited. Likewise the spike-tooth har- 
_row was common to all districts except Thomas County, Kans., where, 
on account of large volunteer wheat acreages, a minimum amount of 
seed bed preparation was required. Sixty-five per cent of the wheat 
acreage in Cheyenne County, Nebr., was tractor disked and twenty- 
two per cent of the wheat acreage in McPherson County, Kans., was 
tractor harrowed. 
The number of times the land was covered with the disk harrow 
varied from once in Clay County, Nebr., and McPherson County, 
Kans., to 1.5 times in Cheyenne County, Nebr. Likewise the range 
in the use of the spike-tooth harrow was from 1.1 times in Woodward 
Fic. 10.—Plowing sod land for wheat with a 5-horse, 2-bottom plow. The 2-bottom gang plow was 
the most common size where horses were used in plowing. 
| County, Okla., to 2.3 times in McPherson County, Kans. The work — 
of seeding was done with both horse and tractor power, although 
mainly with horses. (See Fig. 11.) 
Harvesting with the binder was the common practice in all districts 
except Thomas and Pawnee Counties, Kans., and Woodward County, 
| Okla. Ninety-four per cent of the acreage in Woodward County, 94 
| a cent in Thomas County, and 84 per cent in Pawnee County was 
| harvested with a header. One per cent of the acreage in Pawnee 
County, Kans., 6 per cent in Garfield County, Okla., and 21 per cent in 
| Cheyenne County, Nebr., was harvested with a combine. 
| In all districts except McPherson County, Kans., most of the bundle 
grain was shock threshed, the headed grain all being threshed from 
| stacks in the field. Of the bundle grain production for McPherson 
| County, 59 per cent was shock threshed, and 41 per cent threshed from 
stacks in the field. Of the total bundle grain produced in all districts, 
91 per cent was shock-threshed and 9 per cent stack threshed. 
