140 



HATCH EXPERIMENT STATION. 



[Jan. 



Yields of Hay and Roiven [Pounds) 



The rates of yield per acre are shown below : — 

 Yield of Hay and Rowen per Acre [Pounds) . 



Averaging the yields for plots 1 and 3, we find the total 

 to be at the rate of (),920 pounds per acre. A similar aver- 

 age for plots 2 and 4 gives a yield at the rate of 6,370 

 pounds per acre. The larger application of manure there- 

 fore gives a yield at the rate of 450 pounds per acre more 

 than the smaller application of manure and the potash. 

 The difference in cost of the tAvo applications, as shown 

 above, is at the rate of $0.40 per acre. The 450 pounds 

 of hay costs, therefore, this amount standing in the field. 

 Grass standing in the field cannot be considered to be worth 

 in an average season more than about $7 or |8 per ton of 

 well-made hay. Although, therefore, we have a small dif- 

 ference in favor of the larger application of manure in total 

 crop, the financial outcome is clearly in favor of the com- 

 bination of the lesser amount of manure and the potash 

 salt. 



We have now grown on this field under substantially the 

 present system of manuring nine corn crops and four hay 

 crops, and the results may be brictly stated as follows : — 



