CAMPBELLS SOIL. CULTURE MA N TAL 



167 



with the check row planter, the ground plowed fully 

 seven inches deep, thoroughly pulverized and made firm. 

 Now, supposing we have carried out the necessary work 

 to have stored and conserved moisture to considerable 

 depth, five or six feet, with our plowed ground thor- 

 oughly pulverized and made firm, we have the best pos- 



Cornfield by Campbell System, 84 bushels per acre, Lisbon, N- D. 



sible condition, as stated under the head of sub-sur- 

 face packing, for the three all important conditions which 

 we so frequently mention. That of holding the greatest 

 possible amount of moisture in the soil, a condition to 



