138 



EXPERIMENTAL FARMS 



DIAGRAM SHOWING AVEEAGE GEOWTH OF INDIAN COEN PLANTS. 



CoDtinuous line — Plants in potting soil. 



Broken line — Plants in soil + 5 % MgSO^ -|- excess of CaO. 



Dotted line—Plants in soil + 5 % MgSO^. 



KAY 



^uMe 



JULY 



Indian Corn. — Seed planted May 11th. Experiment ended July 29th. 



The average growth as indicated by the heights of the plants is as follows r 



In good potting soil, 42|- inches. 



In soil containing 5 per cent of magnesium sulphate, 27^ inches. 



In the soil containing both the magnesium sulphate and lime, 32 inches. 



