186 Ageicultueal Expeeiment Station, Ithaca, IST. Y. 



It will be noticed that the average amount of nitrogen recovered in 

 all the manures is considerable more than that of the potash and about 

 twice the amount of phosphoric acid. It is true that in some cases the 

 food fed was highly nitrogenous, but in the majority of cases the ration 

 was the same as that usually fed on the University farm. 



It remains for the farmer to determine Avhether the ration he 

 feeds is greater or less in quantity, or poorer or richer in quality 

 than the rations fed in these experiments before he applies these 

 values to the excrement from his own stock. To enable him to do this 

 with some degree of accuracy the following tables give the fertilizer 

 analyses of foods fed in these experiments and percentages of plant 

 food recovered in the excrements of all experiments : 



Fertilizer Analyses of Foods. 



Corn meal 



Cotton-seed meal. . 

 Clover hay (mixed) 



Linseed meal 



Meat scrap 



Oats 



Wheat bran 



Wheat straw 



Skim milk 



Nitrogen . 



Per cent. 

 1.51 

 6.95 

 1.90 

 1.65 

 5.36 

 9.62 

 1.785 

 2.52 

 .27 

 .58 



Phosphoric 

 acid. 



Per cent. 

 .69 



3.05 

 .45 

 .54 



1.90 



5.01 

 .75 



2.84 

 .25 

 .22 



Potash. 



Per cent. 



.34 

 1.84 

 1.46 

 2.55 

 1.10 



.74 



.51 

 1.49 

 1.13 



.12 



Average Per Cent Recovered of All Experiments. 



Average of the three constituents, seventy -one per cent. 



Without doubt the general average of the plant food recovered is 

 considerably lower than would be the case in ordinary practice where a 

 larger proportion of mature animals are kept. It is frequently stated 



