CHOICE OF FORAGE CROPS 



57 



of fertilizers on the protein content of grasses were con- 

 ducted at the Connecticut (Storrs) Experiment Station. 

 In every case the protein content of the grass was greater 

 when nitrogen was applied in fertilizers than when it was 

 not. In general, the protein content of the grass increased 

 with the amount of nitrogen applied as fertilizer. The 

 results of 73 experiments are summarized in the following 

 table : 



TABLE SHOWING PERCENTAGE OF PROTEIN IN TIMOTHY AND 

 OTHER GRASSES AS RELATED TO FERTILIZERS APPLIED 



RESULTS OF ANALYSES SHOWING RELATION BETWEEN NITROGEN APPLIED IN 

 FERTILIZERS AND PROTEIN (N. x 6.25) FOUND IN RESULTING CROPS 



At the New York Experiment Station in 1887, fertilizing 

 plots of timothy and Italian rye-grass did not indicate 

 any definite effect upon the protein composition, ap- 

 parently because there was already ample nitrogen in the 

 soil. The experiment was repeated in 1888, and in every 

 case where nitrogen fertilizers were added the proteid 

 content of the timothy was increased. 



Similar work has been conducted at other experiment 



1 Included more clover than other plots. 



