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Offlinezodiac312
journeyman

Registered: 02/11/02
Posts: 58
Last seen: 15 years, 4 months
Gypsum
    #590150 - 03/26/02 05:41 PM (15 years, 7 months ago)

1) What is Gypsum?

2) What purpose does it serve when used in substrates? Is it necessary when called for?

3) Where is it sold?

Thanks in advance for all the help.




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Offlinebluhoney
Yes Im a realgirl ,geeesh
Female User Gallery

Registered: 05/24/99
Posts: 936
Last seen: 10 years, 8 months
Re: Gypsum [Re: zodiac312]
    #590171 - 03/26/02 06:03 PM (15 years, 7 months ago)

Its an additive Gypsum: calcium sulfate (CaSO4) - essential to mushroom compost preparation - prevents the compost from becoming too "greasy" - by forming an equilibrium matrix with the water, also helps the colloids to flocculate producing a compost with a more granular structure with increased water holding capacity: provides Ca++ ions; a mineral essential to mushroom growth: helps to prevent the loss of nitrogen (from the breakdown of proteins during the act of composting) by chelating the ammonia. You can pick it up at most garden centers.


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Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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