432 Report of Farmers' Institutes 



Approximate Value of Plant Food in One Ton of Average Manure 



Horse $2 50 



Cow 2 20 



Pig 2 00 



Sheep 3 20 



Steer 2 35 



Hen 4 40 



Altliougli, as Vv'O may expect, particular samples of manure are 

 very variable, a study in table of the dominant characteristics and 

 estimated values of horse, cow, sheep, hog, and hen manure is 

 worth noting, also the means of preservation as listed. 



The difference between the fresh and the rotted manure appears 

 in diagram. 





S 



Fig. 571. — Diagram Showing Difference Betweej^ Fbhsh and Eotted 



Manure 



(N = nitrogen; P205= phosphoric acid; Kj O = potash.) 



The figures in the above diagram are based on the manure that is carefully pro- 

 tected; whereas, in more exposed places, there would be an increased loss of nitrogen 

 and a substantial one in mineral matter. 



Having in mind the characteristics of the various farm ma- 

 nures, these principles must be observed in any successful method 

 of making manure : 



1. Consider the manurial value of your feeds. If two feeds 

 equal in nutritive value are to be had at the same price, buy that 

 which will pay most in the manure heap. 



2. Use litter enous'h to absorb the urine. 



3. Use acid phosphate for the preservation of ammonia and the 

 addition of phosphoric acid that manure lacks. 



4. Keep the manure heap cool, moist, and compact. 



