10 BULLETIN 1198, U. S. DEPARTMENT OF AGRICULTURE. 
while requirements for harvesting with the header and binder are for 
horse-propelled machines. Of the three methods, the use of the 
combine resulted in the greatest saving of man labor. Slightly 
greater amounts of labor and power were required for harvesting 
and threshing with the binder and thresher than with the header and 
thresher. In Missouri, and in Gage and Clay Counties, Nebr., the 
entire wheat acreage was cut with a binder. (See fig. 4.) In the 
more westerly areas the header was substituted for the binder on a 
majority of thefarms. (See fig.5.) Use of the combine was not com- 
mon except in Cheyenne County, Nebr. (See fig. 6.) 
Fic. 4.—Harvesting wheat with a binder. Forty-nine per cent of the total winter wheat acreage included 
in the study was harvested with a binder. Courtesy of Kansas State Board of Agriculture. 
TABLE 7.—Labor and power requirements for harvesting and threshing winter wheat, 1920. 
Hours per acre. 
Method. ; I 
Man. Horse. | Tractor. 
' | 
Combine: 
meaue ane: tnreshing s. 3) 0. ee eee So ee ee as 
Passe Phy Ds Soe 2 as ea ss ee 9 
eee ee ie eas ES He Da SOc ee pep. 
Header and thresher: 
PERE TEESATIO ERE RINNE es oe ee SY SU Te Se oe ee 2.8 | 
PERCE HTUTR SLACKS ee ye ee ok oF EL ee eee 1.5 
rapa bastergh ay Gaede ee Sere Se ae ee -8 
ATES) See SR Se SS a ee ee ee eae cerns SE Fe at 
Binder and thresher: > 
Jev1S tie ee oe Pe Pe ees Se ky ee eee ee ee SOT Se oH reef Pee eee 
SS One Re aya See et ee Ew ao RS ee ee Si! 2 mere ey [2 ee Te 
CERT ee eiyi ita esl 7a gee ale ae oe a ge ae se ee Es ge SES 1.6 =a) Bee eee 
Threshing from stack------- eS Ae ae Pe I ra ee he ee 1 OE eee eee -3 
gS EPTR LTT eg yp By 1 Me Re SP eS ee ee See eS ag | SPS REE ee ter 
Gia aoa ae ot ee Sa ee Ln ae ee 5.3 72 5 
bites ous 
