90 



THE OLIVER PLOW BOOK 



Burying fertilizer at this depth, ten inches in the ground, will do a 

 grain crop planted on the surface little or no good. Buried in this manner 

 manure will not stop the upward trend of moisture to any extent but if it 

 were scattered across the furrow bottom as is usually done the upward 

 trend of moisture would be stopped sufficiently to ruin a crop in a dry year. 



greatest good cannot be secured from the cover crop. 

 This ashy condition cannot exist if the soil contains a 

 great quantity of organic matter, hence the very purpose 



