28 MAIND AGRICULTURAL EXPERIMENT STATION. I906. 



Tlic money value of the fertilizing elements excreted for each 



experiment. 



0) 



3 



O 

 H 



Hay alone 



Hay and spring wheat bran. 

 Hay and winter wheat bran 

 Hay and cottonseed meal. . . 



100 lbs. bay 



100 lbs. spring wheat bran . . 

 100 lbs. winter wheal bran . . 

 100 lbs. cottonseed meal 



Cents. 

 8.63 

 16.38 

 14.89 

 20.57 

 21.93 

 58.64 

 48.02 

 118.30 



The figures given in the above tables furnish results which 

 are instructive and may be of considerable value to the farmer. 

 In feeding animals or buying feeds, one is very likely to consider 

 only the feeding or flesh forming value of the feeds, not taking 

 into consideration their effect on the value of the manure pro- 

 duced. When more manure is needed than can be made and 

 the supply has to be frequently supplemented with commercial 

 fertilizers, the purchase of high priced feeds rich in fertilizing 

 material is oftentimes the most economical on account of the 

 increased value of the manure they make. In the preceding 

 table it will be seen that for every 100 pounds of cottonseed 

 meal fed, about $1.18 worth of fertilizing material was given 

 off in the excreta when everything is saved. 



Another important fact can be learned from the table on 

 page 2^ which shows the amount of fertilizing elements in both 

 the solid and liquid excrements. It will be noticed that the 

 larger part of the nitrogen, the most expensive element, and 

 potash are given off in the urine, hence the importance of saving 

 all of this most valuable part of the manure. Not only are other 

 elements found in large quantities in the liquid, but they are in 

 much more available form than in the solid. 



