36 



HATCH EXPERIMENT STATION. 



[Jan. 



The effect of each of the three elements of plant food — 

 nitrogen, phosphoric acid and potash — is more clearly 

 brouo;ht out in the tables which follow : — 



Value of increase, $8 59 



Financial result (gain) , 5 39 



Value of increase, $7 04 



Financial result (gain) 3 84 



Results of the Addition of Potash to — 



Nothing. 



Nitrate of 

 Soda. 



Dissolved Nitrate and 



bone-black. Dissolved 



Bone-black. 



Average 

 Result. 



Hay (pounds per acre), 

 Rowen (poimds per acre), . 



+233.33 



+450 



+1,200 

 +233.33 



+1,600 

 +996.67 



+2,100 

 +550 



+1,283.33 

 +555 



Value of increase $14 71 



Financial result (gain) 11 51 



Gain. 



■f Lobs. 



