326 



Agricultural Chemistry. 



leaching, but in addition, the solid excrement suffers loss. A 

 considerable portion of both the phosphoric acid and potash 

 eliminated through the intestine is in a soluble form, and the 



Manure leaching. How the manure in America is wasted. 



Chemical changes constantly going on in a manure pile are mal 

 ing soluble the insoluble nitrogenous portions of the dung. 



The following table illustrates the losses which may occur wh< 

 the solid excrement alone is exposed for varying lengths of tii 



Losses in Solid Excrement from Leaching. 



Potash 



Per cent 

 80.0 

 10.0 

 48.0 

 42.0 



47.1 



