308 



DRY-FARMING 



soils, subjected to the intense heat of the western sun, 

 become ver)' hard. In the handling of such soils the 

 disk plow has been found to be most useful. The 

 common experience of dry-farmers is that when 

 sagebrush lands have been cleared, the first plowing 

 can be most successfully done with the disk jjIow, but 



Fig. 77. Disk plow. 



that after the first crop has been harvested, the 

 stubble land can be best handled with the moldboard 

 plow. All this, however, is yet to be subjected to 

 further tests. (See Fig. 77.) 



While subsoiling results in a better storage reser- 

 voir for water antl conseciuently makes dry-farming 

 more secure, 3'et the high cost of the practice will 

 probably never make it popular. Subsoiling is ac- 

 complished in two ways : either by an ordinary mold- 

 board plow which follows the plow in the plow fur- 

 row and thus turns the soil to a greater depth, or by 

 some form of the ordinary subsoil plow. In general, 



