1913. 



PUBLIC DOCUMENT — No. 31. 



23 



1910, clover; 1911, corn followed by clover; and 1912, corn 

 followed by clover. 



The variety of corn grown this year was the same as last, — 

 Rustier White Dent. It made a very satisfactory growth and 

 was well matured by the 19th of September, on which date it 

 was cut and stooked. The average yields for this year are 

 shown in the following table : — 



Average Yields per Acre, 1912. 



On the basis of 100 for nitrate of soda, the relative stand- 

 ing of the different nitrogen plots and no-nitrogen plots, as 

 measured by total yield during the past season, was as fol- 

 lows : — 



The relative standing of the different materials as indicated 

 by total yield for the twenty-three years during which the ex- 

 periment has continued is as follows : — ' 



Per Cent. 



