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Report of Farmers' Institutes 



fact that it pays us for those bulkier portions of the food that are 

 derived from the atmosphere, while it Siaves for us from, half to 

 three-quarters or more of the plant food that we desire, and yet 

 leaves sufficient hulk and food for bacteria, along with a seeding 

 for that crop, to make the indirect effects of animal ejecta a 

 marked characteristic of their value. 



make-up and application of farm manure 



Farmyard manure consists of a mixture of the feces, urine, and 

 litter. By the selective process of enzyme action in the body and 

 the necessity for solution in the absorption of food, the more resis- 

 tant parts of food are left in the feces, and the more available in 

 the urine. The saving of the urine and of the readily decompos- 

 able nitrogen compounds in it thus becomes a matter of first-class 

 importance. The value of manure is determined by the food from 

 which it is derived ; the care with which it is preserved ; the litter 

 that is used ; the animal that has used the food ; its kind, age, and 

 function ; and the way in which the manure is spread. 



Percentage of Plant-food Constituents in Fresh Animal Excrements 



