10 GRASS GROWING FOR PROFIT 
pounds per acre, which would show an average gain 
in yield of 654 pounds per acre; based on the aver- 
age yield of 1.25 tons per acre, the gain would be 
820 pounds. This increase, at an average price of 
$12 per ton, would mean about $5 per acre, or $2 
more than the cost of the material. A very satisfac- 
tory profit, when it is remembered that it is obtained 
at the same cost of Jabor and of capital invested in 
land. 
According to experiments in Rhode 
Island, soils are less exhausted when 
complete fertilizers are used with Nitrate than when 
no Nitrate is used. The soda always left behind 
after the Nitrate of Soda is used up aids the lime 
and potash, and unlocks the soil silicates and 
thereby frees potash, lime and magnesia. The feed- 
ing value of hay is far greater when Nitrate is used 
as a fertilizer in this connection. 
Grass. 
Practical Conclusions. 
The application should be in the 
Cob ae form of a Top-Dressing, applied very 
early in the spring in order that the 
first growth may find readily available material for 
its support and be carried through the season with 
no check from partial starvation. 
On land which shows any tendency to sourness, 
a ton to the acre of slaked lime should be used every 
five or six years. This makes the land sweet and 
promotes the growth of grass plants of the best 
kinds. 
