FERTILIZERS ON SANDY SOIL — SMITH. 



129 



The Nitrogen was applied as Sodium Nitrate and as Ammo- 

 nium Sulphate, Potassium as Potassium Sulphate and Chloride, 

 Phosphorus as Mono-, Di- and Tricalcic Phosphates. 



Table I. 



Shoiuing the per cent, of Increase of each Crop from the Appli- 

 cation of different Fertilizers. 



Per Cent. 



Fertilizer. Crop. Year. Increase. 



NaNOs Potatoes . . 1889 12.2 



" ..1890 6.3 



Grass .. 1889 7.6 



" ..1890 43.5 



" ..1889 9. 



" ..1890 38. 



Potatoes . 1890 3.9 Dec. 



[NH,],S04 



Average. 



17.4a 



14.4 



30.8^ 



11.2 



V20.8 



24.9 



20.7 



11.2 

 4.2 



48.1 



