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History of Mushroom Culture1
The Mushroom Industry8
Structures for Growing Mushrooms16
20 other sections not shown
acid amount anaerobic appear bacteria baskets become C. A. Thomas calcium carbon cause chemical chloropicrin clay soil composting ground contains crop damage desirable dioxide disease dumped dust eelworms effect filled flies formaldehyde formalin fresh fumigation fungi fungicides fungus gallons germinate grain spawn green molds growers growth of spawn gypsum heap hemicellulose horse manure hydrogen cyanide important inches increased insecticides insects Kennett Square kill larvae Lignin lime live steam material method mites miticidal mush mushroom beds mushroom culture mushroom growing mushroom houses mycelium nicotine nitrogen organic oxygen particles peak heat pests pile plant pounds practical present produced protein pyrethrum satisfactory Sciarid Sinden spawn maker spores spray springtails stem sterilization straw surface sweat-out synthetic compost temperature tends tion toxic trays truffle turning urine ventilation Verticillium vitamins water content worms yield