This illustration was made from the photograph of a Food ' or 

 field of Timothy. The portion on the left was not, that on Plants 



the right was, fertilized with Nitrate of Soda, 400 pounds 79 

 to the acre. Every farmer is interested in getting the heaviest 

 possible yield of grass. 



Making Two Blades of Grass Grow Where 

 One Blade Grew Before. 



Grass is a responsive crop and the part played by min- 

 eral chemical fertilizers, as proven in Rhode Island, show 

 the striking effect of Nitrate on yields and feeding quality. 



Since all the other fertilizers were alike for the three 

 plats and had been for many years, and since the general 

 character of the soil and the treatments the plats had received 

 were uniform, any differences must be ascribed to the influ- 

 ence 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 Ibs. per acre* 6,300 5,600 5,550 4,850 2.8 



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



*Amount slightly reduced in 1901 and 1902. 



