124 



Agriculiu ra I Cli c in istry. 



well brought out in the following experiment from the New Jer- 

 sey Experiment Station. Two plots were treated with manure, 

 the one receiving only solid excrement, while on the other the 

 mixed solid and liquid excrement was used. Each plot received 

 enough of the manure to supply equal quantities of nitroj 

 The results are stated in percentage of gain over a check pJ 

 that received no manure. 



Percentage of Gain in Yield from Manure. 



The table clearly shows that the yield from the same amounl 

 of nitrogen was very much larger from the mixed manure than 

 from the solid excrement alone. The experiment also indicates 

 that the nitrogen in the liquid excrement was much more readily 

 utilized by the plant than that in the solid excrement. 



Manure is never so valuable as when fresh ; and the very best 

 methods of handling and care, if the manure must be stored, can- 

 not prevent some loss of the valuable constituents. For this 

 reason, it is advisable when possible, to apply manure to 

 field as fast as it is made. 



Losses in manure from leaching. In addition to the 

 losses due to improper absorption of the urine, the manure suffers 

 heavily from leaching by rains. This is probably the greatest 

 source of loss. It is often allowed to lie for months in the open 

 barn yard, or better, directly under the eaves of the barn, where 

 the leaching and washing processes are more complete. Even 

 after plenty of litter has been used and all urine absorbed, it is 



