52 BULLETIN 917, U. S. DEPARTMENT OF AGRICULTURE. 
(7) Sugar beets require the most labor for cultivation because of 
the handwork necessary in thinning and hoeing. 
(8) Cantaloupes require the most labor for irrigating. 
(9) Alfalfa shows the lowest cost per acre for production, and 
cantaloupes the greatest. 
(10) Oats, wheat, barley, and alfalfa have approximately the 
same requirement of horse labor per acre and the three grains 
approximately the same requirement' of man labor to produce the 
crop, while alfalfa requires a somewhat greater proportion of man 
labor per acre. Beans require approximately twice as much man 
and horse labor as alfalfa. Beets and potatoes require more man 
labor than beans, because of the greater marketing charge, and 
they require about double the horse labor necessary to produce an 
acre of beans, four times the requirement for alfalfa, and five times 
the requirement for grain crops. 
ADDITIONAL COPIES 
OF THIS PUBLICATION MAT BE PROCURED FROM 
THE SUPERINTENDENT OF DOCUMENTS 
GOVERNMENT PRINTING OFFICE 
WASHINGTON, D. C. 
AT 
20 CENTS PER COPY 
V 
