CHAPTER VIII 



DRY-LAND CROPS 



AS we have already seen, the region of 

 JLX the United States which is destined 

 to be reclaimed mainly by the application 

 of the principles of dry-farming com- 

 prises the western half of the Dakotas, 

 Nebraska, Kansas, the Panhandle of 

 Texas, and westward to the Pacific Coast 

 range; in other words the Great Plains 

 region, the Intermountain West, and 

 vast tracts of country in the States of 

 California, Oregon and Washington. 

 Now the annual rainfall of this dry- 

 farming zone varies from four to twenty- 

 five inches per annum; and as might be 

 expected wide differences also occur in 

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