184 Ageictjltueal Expeeiment Station, Ithaca, N. Y. 



It will be seen here also that the nitrogen makes up by far the 

 greater value of the manure, that cow manure is comparatively 

 rich in nitrogen and poor in phosphoric acid and potash ii? shown 

 not only in the average but also in each individual experiment. 



The following table gives the chemical analyses of the manure 

 of each experiment : 



Analyses of Manure. 



The value per day of excrement from 1000 pounds live weight of 

 animal which is a trifle over eight cents represents the value of the 

 excrement produced by the University herd at the prices given. This 

 agrees closely with the results of a former trial published in Bulletin 

 27, p. 38, which gives eight and two-tenths cents as the average value 

 for the excrement from 1000 pounds live weight of animal per day. As 

 the value given in the former trial was estimated at nitrogen worth 1 7 

 cents, phosphoric acid 7 cents, and potash 4 cents per pound, the value 

 per day would be eight-tenths of a cent more than the value given in 

 this bulletin for the same amount of plant food. 



As the amount of bedding used in these experiments did not differ 

 materially from the amount used in ordinary practice where the cows 

 are kept tied in the stalls most of the time, the average of these 

 analysis may be said to fairly represent the manure made by milch cows 

 when fed a liberal grain ration. 



Experiment with horses. — Five horses, four work horses and one two 

 year colt were put on an experiment of manure j)roduction for twenty- 

 four hours. These horses were kept in stalls, the floors of which were 

 water tight. Both the«etalls and the drop at the rear of the stalls were 

 bedded with a fine cut wheat straw and sprinkled with plaster. 



The work horses were fed hay, and a grain ration of twelve quarts 

 per day, consisting of oats, corn meal and wheat bran; the colt had 

 hay only. The following is the data obtained of the manure recovered . 



