132 



THE BOOK OF CORN 



to be fed two hundred days, she will consume four 

 tons. Consequently for twenty-five cows one hundred 

 tons must be provided. A good corn crop will yield 



Fig 34— Construction of Studding Silo in Detail 



A, portion under ground; B, cross-section showing- studdinsr; C, top of 

 silo, showing- arrangement of rafters; D, section of wall, showing building 

 paper between layers of boards; E, wall ventilators; F, door; G, cross-section 

 of door and wall; II, cutting rafters. 



about ten tons per acre. For one hundred tons of 

 silage, therefore, ten acres of corn must be raised. 



Silo with Stud din? — The other kind of a wooden 



