11)2 



HATCH EXPERIMENT STATION 



[Jan. 



eiit 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 different 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 : — 



Plat 1 (6,494 square feet), 

 Plat 2 (6,565 square feet). 

 Plat 3 (6,636 square feet) , 

 Plat 4 (6,707 square feet) , 

 Plat 5 (6,778 square feet), 



( 64^ pounds of 



\ 87 poundu of 



( e.SJ pounds of 



\ 88 pounds of 



< 66 pounds of 



\ 89 pounds of 



( 66J pounds of 



\ 90 pounds of 



( 67J pounds of 



( 9Ug pounds of 



nitrate of soda, 

 polash-magnesia sulphate. 



nitrate of soda, 

 potash-magnesia sulphate. 



nitrate of soda, 

 polash-magnesia sulphate. 



nitrate of soda, 

 potash-magnesia Bulpuate. 



nitrate of soda, 

 potash-magnesia sulphate. 



The results of three years (1894 to 1896) are as follows : — 



Barley. 

 Yield of Crop {1894). 



Rye. 



Yield of Crop (1895). 



Grain and 



Straw 

 (Pounds). 



Grain 

 (Pounds). 



Straw and 



Chaff 

 (Pounds). 



Percentage 

 of Grain. 



Percentage 

 of Straw. 



Plat 1, 

 Plat 2, 

 Plat 3, 

 Plat 4, 

 Plat 5, 



695 

 631 

 383 

 769 

 625 



195 

 166 

 143 

 189 

 185 



500 

 465 

 240 

 570 

 440 



28.06 

 36.31 

 37.34 

 24.90 

 29.60 



71.94 

 73.69 

 62.66 

 75.10 

 70.40 



