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casing depth?
    #2280134 - 01/28/04 11:01 AM (14 years, 4 months ago)

why is it so important to have the right depth I dont get? I mean as long as you have a quarter inch and you patch and stuff why does it matter? Is it just to keep moister to you casing or what someone explain why you nrr 25% of casing to the depth of your substrate. Why is this nesacery?

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Re: casing depth? [Re: fee]
    #2280302 - 01/28/04 12:13 PM (14 years, 4 months ago)

if you have a deep substrate you are going to get more mushrooms, and they will be bigger.

as the mushrooms grow, they are sucking water out of the casing layer. if you have a deep substrate, they may grow very large, and there may be alot of them. if the casing layer is not thick enough to support the water requirements of the flush, the yeild will suffer.

you will also be picking bigger and more plentiful amounts of mushrooms from the casing surface. when you do this, it is damaged and some of the casing material is removed. with a couple prolific flushes on a thin enough layer, you could possibly strip the casing away entirely.

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elephant man

Registered: 11/07/02
Posts: 3,002
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Re: casing depth? [Re: fee]
    #2280352 - 01/28/04 12:29 PM (14 years, 4 months ago)


A quote from Paul Stamets and J.S.Chilton: The Mushroom Cultivator

"The correct depth to apply the casing layer is directly related to the depth of the substrate. Greater amounts of substrate increase yield potential which in turn puts more stress on the casing layer. Prolific first and second flushes can remove a thin casing or damage its surface structure, thereby limiting future mushroom production. A thin casing layer also lacks the body and moisture holding capacity to support large flushes.
Agaricus growers use a minimum of one inch and a maximum of two inches of casing on their beds. Substrate depths of six to eight inches are cased 1 1/4 to 1 1/2 inches deep. Substrates deeper than 8 inches are cased 1 1/2 to 2 inches deep. Nevertheless, experiments in Holland using casing depths of 1 inch and 2 inches demonstrated that the deep casing layer supported higher levels of microorganisms and produced more mushrooms. (See Visscher, 1975). To gain the full benefits of a casing layer, an absolute minimum depth on bulk substrates is one inch. For fruiting on sterilized grain, the casing need not be as deep as for fruiting on bulk substrates. Shallow layers of grain are commonly cased 3/4 to 1 inch deep."


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Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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