COST OF PRODUCIKO WHEAT. 
33 
for the plow on a part of the wheat acreage. (See fig. 8.) In Ford 
County 31 per cent of the wheat area was listed; in Pawnee County 
50 per cent; and in McPherson County 19 per cent of the land was 
broken in this manner. After listing a ''ridge buster," or ''sled/' 
as it is com m only called, was used for the purpose of tearing down 
the ridges or rows left by the lister. In some of the areas a part of 
the com stubble land was prepared for seeding by rimning over it 
with a two-horse disk cultivator. In St. Charles County, Mo., 
21 per cent of the wheat acreage was gone over mth the disk culti- 
vator. The disk harrow was extensively used in some areas for all 
preparation prior to drilling. On some farms a part of the grain 
stubble and corn land received no preparation, but was seeded with 
Fig. 8.— Preparation of land for wheat with the one-row lister. 
a disk drill, which served the purposes of preparing the land and 
seeding in one operation. (See fig. 9.) 
The spike-tooth harrow was used extensively in both spring and 
winter wheat areas. In the spring-wheat areas 76 per cent of the 
entire acreage was spike-harrowed before seeding, and 30 per cent 
of this acreage was harrowed again after seeding. The spike-tooth 
harrow was also commonly used in the winter-wheat areas, but none 
of this work was reported after seeding. 
In the spring-wheat districts 83 per cent of the acreage was cut 
with a binder and 17 per cent was headed. (See PL I.) Of the 
total acreage harvested, 6 per cent was cut with tractor power. All 
work with the header was reported from Morton County, N. Dak., 
and Spink Coimty, S. Dak. In these two areas 88 and 20 per cent, 
respectively, of the total acreage was headed. In the winter-wheat 
