50 



AGRONOMY 



Photograph by Mark Bennitt 



FIG. 24. A field of wheat in the dry-fanning region 



Photograph by H. L. HollUtcr Land Co. 



FIG. 25. 'Irrigating a fig orchard in California 



Irrigation. Ordinary crops can be produced with as little 

 as twenty inches of rainfall if it is properly distributed, but 

 when it does not come in the growing season, or is limited in 



