273 
ON DRY-FARMING INVESTIGATIONS IN THE UNITED STATES. 
| 
3 
= 
Ni 
Peoe Begavev usw age gaune 
*, while the 
at in comparison with a plat the surface 
It will be seen that the mulched plat 
depth of 3 feet. 
1 
of which has been scraped with a hoe to cut the weeds, and with a plat on 
which the weeds were allowed to grow. 
and the scraped plat differ little in effectiveness in conserving water 
weeds reduce the moisture content to a 
Fig. 3.—Loss of moisture from a mulched p 
1914. 
