196 DRY-FARMING 
during the spring, summer, and fall of the fallow year. 
The appreciation of the fact that weeds consume 
precious moisture and fertility seemed to be general 
Fie. 47. Clean summer fallow. Utah. Note the strip of dirty fallow 
(at left). Only clean summer fallow should be practiced in dry-farming. 
among the dry-farmers from all sections of the coun- 
try. (See Fig. 47.) The following states, provinces, 
and countries declared themselves as being definitely 
and emphatically in favor of clean summer fallowing: 
California, Utah, Nevada, Washington, Montana, 
