present in the fertilizer mentioned in the formula and ^ ts for 



present in the soil. 



When clean No. 1 hay sells above $16.00 per ton 8 s 

 the financial results are very satisfactory. Nitrate can 

 sometimes be used alone for a season or two and at 

 very great profit, but a full grass ration is better in 

 the long run for both the soil and crop. Generally 

 speaking, 100 pounds of Nitrate, if used under proper 

 conditions, will produce an increase of from 1,000 to 

 1,200 pounds of barn-cured, clean timothy hay, the 

 value of which shall average from $8.00 to $10.00. 

 Compared with the value of the increased hay crop, 

 it pays well to use Nitrate liberally on grass lands. 



Making Two Blades of Grass Grow Where 

 One Blade Grew Before. 



Grass is a responsive crop and the part played 

 by mineral chemical fertilizers, as proven in Rhode 

 Island, shows the striking effect of Nitrate on yields 

 and feeding quality. 



Since all the other fertilizers were alike for the 

 three plots and had been for many years, and since 

 the general character of the soil and the treatments the 

 plots had received were uniform, any differences must 

 be ascribed to the influence of the varying quantities 

 of Nitrate of Soda. These differences, so far as they 

 are shown by the weights of the crops for four years 

 are given in brief below: 



Yield of Cured Hay Under Different Rates 

 of Nitrogenous Fertilization. 



Yield of Cured Hay. Average 

 1899, 1900, 1901, 1902, Yields 



Nitrate of Soda applied. Lbs. Lbs. Lbs. Lbs. in Tons. 



None 5,075 4,000 3,290 2,950 1.9 



150 lbs. per acre*... 6,300 5,600 5,550 4,850 2.8 

 450 lbs. per acre*... 6,913 8,200 9,390 8,200 4.1 



* Amount slightly reduced in 1901 and 1902. 



