DRY-FARMING ZONES 



ley and corn be obtained? (1) By rais- 

 ing the same crop continuously by 

 ordinary methods of farming, (2) by 

 continuous cropping with the same crop, 

 using the best methods of cultivation for 

 moisture conservation, or (3) by alter- 

 nate cropping and summer fallowing. 

 The various Experiment Stations now 

 established by the United States and the 

 State Legislatures will do much to help 

 the farmer in solving these problems. 



Early Mistakes. 



As I have elsewhere noted the settlers 

 who came from the East soon found that 

 with the fertile and easily tilled lands of 

 the West, it was easy, in good seasons, to 

 raise large crops. This led to very casual 

 and slovenly methods of tillage. Plow- 

 ing was carelessly done to a depth of 

 only three or four inches. Sometimes, 

 indeed, the land was plowed only once in 

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