126 DRY-FARMING 



thus caught will slijwly work its way down into the 

 lower layers of the soil. Deep plowing is always to 

 be recommended for successful dry-farming. 



In humid districts where there is a great difference 

 between the soil and the subsoil, it is often dangerous 

 to turn up the lifeless subsoil, but in arid districts 

 where there is no real differentiation between the 

 soil and the subsoil, deep plowing may safely be rec- 

 ommended. True, occasionally, soils are found in 

 the dry-farm territory which are underlaid near the 

 surface by an inert clay or infertile layer of lime or 

 gypsum which forl)itls the farmer putting the plow 

 too deeply into the soil. Such soils, however, are 

 seldom worth while trying for dry-farm purposes. 

 Deep i)l()wing must be practiced for the best dry- 

 farming results. 



It naturally follows that subsoiling should be a 

 beneficial practice on dry-farms. ^Vliether or not 

 the great cost of subsoiling is offset by the resulting 

 increased yields is an oi)en question; it is, in fact, 

 cjuite doubtful. Deep plowing done at the right time 

 and freciuently enough is ]30ssibly sufficient. By 

 deep plowing is meant stirring or turning the soil 

 to a depth of six to ten inches, Ix'low the surface of 

 the land. 



Fall ploicing for icater storage 



It is not alone sufficient to jilow and to plow 

 deeply ; it is also necessary that tlu> ])lowing be done 



