236 CROP GROWING AND CROP FEEDING 



content and to prevent the loss of fertility. Where the crimson clover will 

 succeed this is by far the best, as it grows during the winter. If cow peas are 

 used, the land should be sown in rye as a winter cover after the peas are dead. 

 Treated in this way, the onion crop can be profitably grown on the same 

 ground annually with increasing yield. 



Six pounds of seed per acre are sown when the crop is in close rows for 

 hand tools, but half that quantity will be an abundance when sown for horse 

 culture. The sowing may be done in the North as late as the first of May, 

 but from Virginia southward the crop will fail if sown later than March. 



