160 



CHEMISTRY OF FARM PRACTICE 



Table XIV shows an effective three-year test, using the 

 common three-year rotation so much advised for Southern 

 conditions. 



TABLE NO. XIV. AN ELEMENTARY FERTILIZER TEST IN 

 CONNECTION WITH A THREE- YEAR ROTATION 



CORN AND COWPEAS, FOLLOWED BY OATS OR OATS AND VETCH, 

 FOLLOWED BY COWPEAS, FOLLOWED BY A COVER CROP, PREF- 

 ERABLY A LEGUME FOLLOWED BY COTTON, FOLLOWED BY A 

 COVER. 



OATS OR OATS AND VETCH FOLLOWED BY COWPEAS, FOLLOWED BY A 

 COVER CROP, PREFERABLY A LEGUME, FOLLOWED BY COTTON, 

 FOLLOWED BY A COVER CROP, FOLLOWED BY CORN AND COW- 

 PEAS. 



