LiPPiNCOTT's FARM MANUALS 



EDITED BY K. C. DAVIS, PH.D. (CORNELL) 



PRODUCTIVE 

 FARM CROPS 



BY 



E. G. MONTGOMERY, M.A. 



PROFESSOR OF FARM CROPS, CORNELL UNIVERSViy . .'. , , ., ' 



203 ILLUSTRATIONS IN THE TEXT 



" If vain our toil, 

 We ought to blame the culture, not the soil." 



POPE Essay on Man 



SECOND EDITION REVISED 



PHILADELPHIA & LONDON 



J. B. LIPPINCOTT COMPANY 



