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PUBLIC DOCUMENT — No. 31. 



163 



Ejfed of Superphosphates on Nitrogen. 



1910 



(Per Cent.). 



No phosphate, . 

 Low phosphate, . 

 Medium phosphate, 

 High phosphate, 



2.27 

 2.95 

 2.18 

 2.04 



Effect of Muriate of Potash on Nitrogen. 



1910 



(Per Cent.). 



No potash. 

 Low potash. 

 Medium potash, 

 High potash. 



Effect of Season of Application of Nitrate of Soda on the Nitrogen. 



Spring Application. 



Low, 



Medium, 

 High. 



Average, 



Plot 

 Number. 



1908 



(Per Cent.). 



1.57 

 2.18 

 1.96 



1.90 



1910 



(Per Cent.). 



1.C4 

 1.97 

 1.96 



1. 



Summer Application. 



Low, 



Medium, . 

 High, 



Average, 



1.78 

 2.23 

 2 36 



2.12 



1.99 

 2 01 

 2.22 



2.07 



Spring and Summer Applications. 



Low, 



Medium, 

 High, 



Average, 



1.73 

 1 92 



1.88 



1.S2 

 1.94 

 1.98 

 1.91 



