DRY-rARM SOILS 



67 



many occur naturally. Such soils should not be 

 chosen for dry-farm purposes, for they are likely to 

 give trouble. 



Fig. 19. Typical deep arid soil, well adapted for dry-farming. Utah. 



Plant-food content. — This condition necessarily 

 leads at once to the suggestion that the soils fr(jm the 



