Food for 

 Plants 



1^ 



^Plot i8.) Cow Peas. Fertilizer — 400 lbs. acid phosphate and 200 lbs. muriate of potash. 



No Nitrate of Soda applied. 



(Plot 17.) Cow Peas. Fertilizer — 375 lbs. Nitrate of Soda, 400 lbs. acid phosphate 



and 100 lbs. muriate of potash. 



