results show a v^crv considerable gain from the use of ^^^'^ ^^^ 



Nitrate of Soda, and also that this gain increased as the ^"_^f 



Nitrate was increased. The following table gives the similar 

 data for the Niagara grapes : 



The peach series compared in the same manner gives 

 the figures in the following table, the fertilizer applications 

 remaining the same as in the grapes series : 



As in the grapes series, the increasing applications of 

 Nitrate are accompanied by increased growth, also the green 

 manure experiment fails to show values equal to the direct 

 use of Nitrate, In the plum series six varieties were 

 planted, varying so widely in type that no general com- 

 parison can be made with any degree of accuracy. The 

 figures for the pears series are as follows, the fertilizer 

 applications being the same as in the grapes series of plots: 



Plot 22 received only half the Nitrate application made 

 on plot 16 but twice the potash, the object being to more 

 directly compare plot 22 with plot 23, the latter having the 

 increased potash to provide for the legume, cow peas, and 

 the Nitrogen assimilated from the air by the growth of 

 same. Invariably in these experiments the legume plot 

 falls behind the Nitrate plots, though the Nitrogen supplied 

 by the green manure is probably greater in quantity than 



103 



