Farmyard and Green-Manures 



125 



Poultry and pigeon manures. 



These products accumulate in considerable amounts on 

 many farms, and are often more highly valued than their 

 composition warrants. Many believe that they can be 

 favorably compared with high-grade commercial fertilizers. 

 The good results obtained are doubtless due to the readily 



FIG. 6. THE MANURE SPREADER is A LABOR-SAVING DEVICE 



WHICH SECURES AN EVEN DISTRIBUTION". 



available form in which the nitrogen exists, since the 

 examination of these products does not show them to be 

 particularly rich in nitrogen, or in the mineral elements 

 of fertility, phosphoric acid and potash. 



The composition of chicken manure in the fresh state 

 is very variable not only in its content of the fertility ele- 

 ments but also in its content of moisture which in large 

 degree determines its value for manurial purposes. The 

 following table shows some of its variations : 



