192 



HATCH EXPERIMENT STATION. 



[Jan . 



ent kind of phosphate, yet of corresponding money vahae, 

 it was decided to continue the experiments for the purpose 

 of studying the after-effect of the difterent phosphates on the 

 crops to be raised. To gain this end the phosphates were 

 hereafter in all cases entirely excluded from the fertilizers 

 applied; in addition to this change, the former amount of 

 potash and nitrogen was increased one-half in quantity, to 

 favor the highest effect of the stored-up phosphoric acid in 

 the soil under treatment. 



The fertilizers hereafter used had the following composi- 

 tion : — 



( 64| pounds of nitrate of poda. 

 Platl (6,494 square feet), . . . . • J 87 pounds of potash-magnesia sulphate. 



t 65J pounds of nitrate of soda. 

 Plat 2 (6,565 square feet), j yg pounds of potash-magnesia sulphate. 



< 66 pounds of nitrate of soda. 

 Plat 3 (6,036 square feet) ^89 pounds of potash-magnesia sulphate. 



( 665 pounds of nitrate of soda. 

 Plat 4 (6,707 square feet) j gO pounds of potash-magnesia sulphate. 



( 67| pounds of nitrate of soda. 

 Plat 5 (6,778 square feet) ^ 9o| pounds of potash-magnesia sulphate. 



The results of three years (18D4 to 1896) are as follows : — 



Barley. 



Yield of Crop (1894). 



Bye. 



Yield of Crop (1895). 



