FARM MANURES 



I6 5 



from the solids in having a much larger amount of 

 nitrogen and less phosphoric acid. 56 



The nitrogen in the food consumed influences the 

 amount of water in the manure. As a rule, a highly 

 concentrated nitrogenous ration produces a higher per 

 cent of water than a well-balanced ration. There is 

 but little phosphoric acid in the liquid excrements of 

 horses and cows, while that of sheep and swine contains 

 appreciable amounts. 



The liquid manure is more constant both in compo- 

 sition and amount than the solid excrements. This 

 fact may be observed from the following table, which 

 gives the composition of the solid and liquid excre- 

 ments of hogs when fed on different amounts of 

 grain. 57 



The nitrogenous waste matter in the urine is nearly 

 the same whether an animal be gaining or losing in flesh, 

 and hence it is, the urine is more constant in composi- 

 tion and quantity than the solid excrements. 



