ADVANTAGE OF DEEP ROOTING 93 
the roots must be driven downward into the soil, 
and that no injury needs to be apprehended from 
deep and vigorous cultivation. 
One of the chief attempts of the dry-farmer must 
be to see to it that the plants root deeply. This can 
be done only by preparing the right kind of seed-bed 
and by having the soil in its lower depths well stored 
with moisture, so that the plants may be invited to 
descend. For that reason, an excess of moisture 
in the upper soil when the young plants are rooting 
is really an injury to them. 
