FIELD EXPERIMENTS. 



27 



Fertilising elements excreted by each steer for Uve days 



Hay alone Steer 1 



Hay alone Steer 2 



Hay and spring wheat bran, Steer 1 

 Hay and spring wheat bran, Steer 2 

 Hay and winter wheat bran. Steer ) 

 Hay and winter wheat bran, Steer 2 



Hay and cottonseed meal Steer 1 



Hay and cottonseed meal Steer 2' 154.6 



Grams. 

 228.1 



236.1 



209.9 



259 1 



192.2 



229.4 



275.0 



269 5 



Fertilising elements in food and the average amount excreted 

 for each experiment. Five days. 



a 

 C 



Hay alone 



Hay and spring wheat bran 



Hay and winter wheat bran 



Hay and cottonseed meal, 8 to 2 



% 



71.8 

 S.i.3 



77.7 

 74.6 



In the table that follows there are given the values of the 

 fertilizing constituents of the total excreta in each experiment 

 and of the resulting manure from 100 pounds of each feed, pro- 

 vided both the solid and liquid excreta are saved. In the cal- 

 culations the values for the same materials assumed for commer- 

 cial fertilizers in 1904 are used. 



