19K 



PUBLIC DOCUMENT — No. 31. 



23 



1910, clover; 1911, com followed hy clover; and 1912, corn 

 followed bj clover. 



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

 Knstler White Dent. It made a very satisfactory growth and 

 was well matured hy 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. 



Plot. 



Hard Corn, 



Ears 

 (Quahels). 



Soft Corn, 



Ears 

 (Bushols). 



Stover 

 (Pounds). 



No-nitrogen (4, 7, 9), 

 Nitrate of sjda (1, 2), 

 Dried blf)od (3, 10), 

 Sulfate of ammonia (."), fi, 8), 

 Manure (01, 



67.86 

 93.00 

 89 57 

 78.26 

 80 00 



1.61 

 1 79 

 1 31 

 1.02 

 1.29 



5,116.70 

 5,700.00 

 ■5,450.00 

 5,133.30 

 5,000 00 



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

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

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

 lows : — 



Per Cent. 



Nitrate of soda, . 

 Barnyard manure, 

 Dried blood. 

 Sulfate of ammonia, 

 No-nitrogen, 



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. 



Nitrate of sorla, 100.00 



Barnyard manure, 94.28 



Dried blood 92.95 



Sulfate of ammonia, 87.38 



No-nitrogen, 73.04 



