462 



AGRICULTURAL ENGINEERING 



each day, after the silo is opened, to keep the silage fresh. 

 If a less amount is fed, a growth of mold is quite likely to 

 start and travel downward as fast as, if not faster than, 

 the rate of feeding. 



The proper height of the silo is readily determined by 

 the length of the feeding season. It is an advantage, how- 

 ever, to have a deep silo. First, it is ecomonical, as addi- 

 tional volume is obtained without adding to the expense of 

 foundation and roof. Secondly, the silage depends upon the 

 exclusion of air for its preservation, and the extra weight of 

 silage in a deep silo promotes settling and assists in this 

 direction. Two silos of medium diameter are better than 

 one large one, as there may be times when it is desired to 

 feed the silage lightly. 



Capacity of silos, and the amount of silage that should be fed daily 



from each. 



Inside 

 diameter 



Height 



Capacity, 

 tons 



Acres of corn 



of 15 tons 



per acre 



Amount. 



to be fed daily, 



pounds 



12 

 12 

 12 



12 



30 

 32 



34 

 36 



67 

 74 



80 



87 



4.5 

 5.0 

 5.3 

 5.8 



755 

 755 

 755 

 755 



14 

 14 

 14 

 14 



30 

 32 

 34 

 36 



91 

 100 

 109 

 118 



6.1 

 6.7 



7.2 

 7.9 



1030 

 1030 

 1030 

 1030 



16 

 16 

 16 

 16 

 16 

 16 



30 

 32 

 34 

 36 

 38 

 40 



119 

 131 

 143 

 155 

 167 

 180 



8.0 



8.7 



9.5 



10.3 



11.1 



12.0 



1340 

 1340 

 1340 

 1340 

 1340 

 1340 



18 

 18 

 18 

 18 



36 



38 

 40 



42 



196 

 212 

 229 

 246 



13.2 

 14.1 

 15.26 



16.4 



1700 

 1700 

 1700 

 1700 



