38 a 



EXPERIMENT STATION. 



[Jan. 



The crop this year was clover. Two splendid crops were 

 harvested, and a very fair third crop was turned under in 

 November. The average yield for this year on the different 

 nitrogen and no-nitrogen plots is shown in the following table: — 



Average Yields per Acre, 1915 {Grass and Clover). 



Plots. 



Limed 

 (Pounds). 



Unlimed 

 (Pounds). 



Average 

 (Pounds). 



Nitrate of soda, 1 and 2, 

 Dried blood, 3 and 10, 

 Sulfate of ammonia, 5, 6 and 8, 

 No nitrogen, 4, 7 and 9, 

 Manure, 0, . 



8,450 

 8,050 

 8,867 

 8,053 

 7,800 



7,800 

 8,600 

 7,300 1 

 8,133 

 8,300 



8,125 

 8,325 

 8,083 

 8,093 

 8,050 



• Grasses in much larger proportion than on other plots. 



As the crop stood in the field there was a marked difference 

 between the limed and unlimed portions of all plots except the 

 nitrate of soda plots and the manure plot. It was desired to 

 obtain photographs of the crop on the limed and unlimed areas 

 of the different plots, and owing to the unsettled weather con- 

 ditions it was necessary to make the stacks over three or four 

 times, which caused a loss of leaves and consequently reduced 

 the weights somewhat. This loss was most serious on the plots 

 with the heavier yields of clover. 



The following table shows the yield per acre obtained this 

 year on the different plots : — 



Yields per Acre (Poimds). 



Plot. 



Fertilizer. 



Stable manure, 



Nitrate of soda, . 

 Muriate of potash. 

 Dissolved boneblack, 



Nitrate of soda, . 



Sulfate of potash-magnesia, 



Dissolved boneblack, 



Dried blood, 

 Muriate of potash. 

 Dissolved boneblack, 



First Crop. 



Limed. 



4,100 

 5,800 



4,100 



4,400 



Unlimed. 



4,300 

 3,500 



4,700 



4,800 



Second Crop. 



Limed. Unlimed. 



3,700 

 3,800 



3,200 



3,500 



4,000 

 3,900 



3,500 



3,900 



