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Hippie3 (Admin)
Posted on Thursday, August 14, 2003 - 02:23 pm:Edit Post Quote Text Delete Post Print Post Move Post (Moderator/Admin Only)

one formula.
Perlite spawn
This was developed by Lemke (1971). Perlite is a mineral which expands at temperature more than 10000C. The ingredients, of the spawn are : Perlite (1,450 g), wheat-bran (1,650 g), gypsum (200 g), calcium carbonate (50 g), and water (665 cc). The gredients are mixed, filled in bottles and sterlized. Thereafter, the process is the same as for grain spawn. Perlite spawn is easy to disperse and can be produced at a cheaper cost. This spawn can be stored for a long time.
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rodger rabbit (Skyypilot)
Posted on Thursday, August 14, 2003 - 02:28 pm:Edit Post Quote Text Delete Post Print Post Move Post (Moderator/Admin Only)

I've also found that perlite can also be used instead of verm for casing mix, or for mixing in with compost to keep it loose.
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Hippie3 (Admin)
Posted on Thursday, August 14, 2003 - 02:31 pm:Edit Post Quote Text Delete Post Print Post Move Post (Moderator/Admin Only)

i've even put a thin layer of damp perlite on fruiting casings to re-hydrate in mid-flush.
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Highflyer (Highflyer)
Posted on Thursday, August 14, 2003 - 07:44 pm:Edit Post Quote Text Delete Post Print Post Move Post (Moderator/Admin Only)

Perlite is one of my pet peeves.
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Jesse James (Spacecowboy)
Posted on Thursday, August 14, 2003 - 08:08 pm:Edit Post Quote Text Delete Post Print Post Move Post (Moderator/Admin Only)

So it is about a 50/50 mix of wheat bran to perlite then pH conditioners are added.

I was under the immpression that perlite was similar to fine glass and should not be consumed or inhaled.
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Soliver (Soliver)
Posted on Thursday, August 14, 2003 - 08:45 pm:Edit Post Quote Text Delete Post Print Post Move Post (Moderator/Admin Only)

Wear a mask if it's dry,
if it's wet you have no worries.
Silicosis is nasty - once those particles
go in, they don't come out. Get a respirator, mask,
whatever, but wet work is always safest.

Soliver

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