VALUE OF MANURE 13 



equal or greater force to the liberation of phosphorus 

 from the insoluble rock phosphate when applied in con- 

 nection with manure. 



When we remember that the production of manure 

 of the 1000 pound steer for a six-months' feeding period 

 varies from three to four tons, we can appreciate what a 

 factor farm yard manure may become in increasing the 

 revenues of the farm and that profits and losses in cat- 

 tle feeding should not stop with a consideration of the 

 cost of cattle and feed and their selling price. 



