DRY-FARMING ZONES 



(2) Constant harrowing to form a soil- 

 mulch. (3) The summer fallow to rest 

 the soil, to encourage the nitrifying bac- 

 teria, and to carry over the rainfall from 

 one season to another. (4) Fall plow- 

 ing. (5) A small quantity of seed, so as 

 not to draw too heavily on the limited 

 amount of moisture in the soil before the 

 plants are strong enough to resist 

 drought. In a word, the farmers of this 

 region have concentrated their whole 

 attention on one problem, namely, the 

 conservation of water for the use of the 

 crop. Furthermore, the more progres- 

 sive settlers are convinced that too many 

 different types of cereals are being 

 grown and an effort is now being made 

 to eliminate all inferior and mixed va- 

 rieties and to raise one standard sort 

 which will command a ready sale at a 

 high price. 



195 



