CHEMICAL CORN-GROWING. 



89 



Merchantable corn, 

 Unsound corn, 



8.77 bush, of 72 Ifes. 

 2.46 " of 72 " 



Or a yield per acre of 21.8 bushels merchantable, and 14.2 

 bushels unsound corn. 



October 23, the committee viewed the field and report 

 the yield as 82| bushels of 72 pounds per acre. 



That is, we have the following statements of fact : — 



60 1 bush, corn per acre. 



yi (c bi (( 



66 



We apjjlied sufficient nitrogen for 



" " potash 



" phosphoric acid " 

 According to Professor Stockbridge. 



We obtained 82A bushels of corn per acre. 



We have for natural yield of the field, 21.8 bushels per acre. 

 Difi*erence, 60.7 bushels per acre. And this difference is 

 claimed by Prof. Stockln-itlge as representing the efficiency of 

 the fertilizer applied. 



The total expenditure in labor and cost to date, October 

 12, has been as follows, estimating the labor of a man at 

 18 cents and of a horse at 9 cents an hour : — 



* Applying fertilizer in hill was included in labor of planting. 



The charge for the labor of a man cannot be questioned, as 

 18 cents an hour is $1.80 a day, or $40.80 a month of 26 days ; 

 as this is somewhat more than we pay for a month of 30 days, 

 our reckoning here is slightly in excess of the truth. 



The cost of horse labor to the farmer may well receive dis- 

 cussion here, as I can find scarcely two farmers who agree 



12* 



