INDOOR COMPOSTING FOR MUSHROOM CULTURE 3 
120°, and above 140° there is danger of upsetting the nutritive 
balance in the manure to favor weed molds. The temperature of the 
manure inside the beds was controlled by cooling or warming the air 
surrounding the beds. 
Figure 1.—Mixing water, soil, and fertilizers with chopped manure as it is 
blown from an ensilage cutter. 
Figure 2.—Trays filled at the rate of 18 to 15 pounds per square foot with fresh 
manure prepared for indoor composting. ‘The sides of these trays are 4 inches 
high. 
The difference between manure temperature (center of bed) and air 
temperature surrounding the bed appears to be a simple index of the 
