Oct. 4, 1915 
Effect of Alkali Salts in Soils on Crops 
4i 
Fig. 44.—Curve showing the effect of concentration of salts on the height of plants from seeds of various 
kinds. Average for sodium chlorid, sodium carbonate, and sodium sulphate. 
Fig. 45.—Curve showing the effect of sodium chlorid, sodium carbonate, and spdium sulphate on the 
height of plants from seeds of various kinds. Average for concentrations from 1,000 to xo,ooo p. p. m. 
