BARNYARD MANURE 



139 



for the manure that they produce. Even in new countries 

 it is well to consider the question of feeding grain to 

 animals rather than selling it. If the stock can be made 

 to pay nearly as well as grain selling, it is to be preferred 

 on account of the greater crops that can be secured in 

 the future. 



143. Amount and Value of Manure Produced by Farm 

 Animals. A 1,200-pound horse will produce about eleven 

 tons of excrement per year, which, together with the 

 bedding, will make about fourteen tons of manure. A 

 cow produces about the same amount. Steers fed at the 

 Ohio Station averaged at the rate of nine tons per year. 

 An equal weight of sheep produces fewer tons, but the 

 manure is drier, so that about the same amount of plant- 

 food is produced. A fairly safe rule for any stock except 

 sheep, poultry and hogs is to count one ton per month 

 for each 1,000 pounds of animals kept. To purchase an 

 equal amount of plant-food in fertilizers would cost about 

 $40 per year. The following table gives results procured 

 by Roberts: 



MANURE PER 1,000 POUNDS OF LIVE WEIGHT 



1 The nitrogen is figured at 20 cents and the other constituents at 5 

 cents per pound. 



