FARM DAIRYING 



The primary principle in the making of silage 

 Is the exclusion of air In order to prevent decay; 

 therefore not only the walls but the doors must 

 be perfectly air-tight. 



The walls should not only be tight and rigid 

 but they should also be smooth and straight on 

 the Inside to permit the silage to settle without 

 forming pockets. (See diagram on page 88.) 



The majority of silos being built have a con- 

 tinuous door which makes It very convenient for 

 emptying the silo. Two-ply boards should be 

 used for the door with tar paper or heavy build- 

 ing paper between and on the edges. Doors on 

 hinges are objectionable. 



The deeper the silo the greater the pressure 

 and the larger amount of corn can be stored per 

 cubic foot. A silo should not be less than 30 feet 

 deep or more than 12 or 14 feet in diameter. 



Steel silos are gaining In favor, and seemingly 

 do not hold the frost any more or even as much 

 as the cement ones. The steel, being thin and a 

 good conductor of heat, readily transmits any 

 warmth in the air. 



A cement silo costs from $1.75 to $2.00 per ton 

 capacity; a round wooden silo from $1.25 to 

 $1.50; and a stave silo from $0.75 to $1.00, prices 



[89 1 



