DRY-LAND AGRICULTURE 



239 



rainfall but slightly below the normal will result in failure. The 

 distribution of this rainfall is quite important, although not so 



AW70SA TYPE 



AROOCVMIJiKI HII131 



PlAINSTVre 



uunmi irninuiiirviii 



.urn., im.,1 nil 



Fio. 103. Typa of rainfall over the dry-farm area ,of the United States. (AfUr Henry) 



Fio. 104. Sngp bnish on land woll adnptod to dry farming. I'tan. 



much so as in Inimid regions, since l>y practicing llio best methods 

 of conservation the moisture may lie held in the soil. It is, how- 

 ever, desirable to have the rainfall during the growing season. 



