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OfflineEWalter69
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Substrate directly on perlite?
    #6220664 - 10/28/06 10:45 AM (17 years, 5 months ago)

I am doing a casing and was wondering if adding the crumbled substrate directly on top of a perlite layer at the bottom of the chamber is a good idea. I couldn't find a definitive answer in the grow guides on this site.

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OfflinePrimate
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Re: Substrate directly on perlite? [Re: EWalter69]
    #6220694 - 10/28/06 11:02 AM (17 years, 5 months ago)

I'd go with no. that could open you up to more contams, Like it does a cake.

Also it kinda defeats the purpose of the casing layer(to provide a good micro climate for pinning) since without a container for the casing you are going to get side pinning.

So it'd basically just be like a cake cased on one side.

-Prim


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-Micheal Franti and Spearhead

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Invisibleemeryg89
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Re: Substrate directly on perlite? [Re: Primate]
    #6220701 - 10/28/06 11:06 AM (17 years, 5 months ago)

Through experimentation, one has crumbled nearly dead, dry cakes onto moist perlite. The mycelium revived, overtaking the perlite, and plent of mushrooms actually grew through the perlite. Another method was tried with mixing the crumbled cake with the perlite. This too worked, but both methods produce inferior results.

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OfflineEWalter69
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Re: Substrate directly on perlite? [Re: emeryg89]
    #6220768 - 10/28/06 11:33 AM (17 years, 5 months ago)

Should I put casing material between the perlite and the substrate then? (I have a bag of jiffy mix)

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OfflineRogerRabbitM
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Re: Substrate directly on perlite? [Re: EWalter69]
    #6220807 - 10/28/06 11:47 AM (17 years, 5 months ago)

Do NOT put a substrate directly on perlite. It will become waterlogged and performance will suffer.
RR


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OfflinePrimate
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Re: Substrate directly on perlite? [Re: RogerRabbit]
    #6220824 - 10/28/06 11:56 AM (17 years, 5 months ago)

you should put your substrate(colonized grain or PF tek substrate) into a plastic or tin container. then your casing layer should go on top of your colonized substrate(about .4 inches thick). then the whole container goes inside your fruiting chamber, where it(the container) sits on top of your perlite.

Make sure your substrate depth is close to 2 inches deep.

-Prim


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"Power to the peaceful"

-Micheal Franti and Spearhead

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OfflineEWalter69
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Re: Substrate directly on perlite? [Re: Primate]
    #6220875 - 10/28/06 12:25 PM (17 years, 5 months ago)

My casing is going to be done in a plastic bin. Suppose I put a sterlized piece of carboard/tin foil on top of the wet perlite, then put casing mix/substrate/casing mix on top of that? Or, since I'm doing a single casing in a tub, should I just forget the perlite?

Edited by EWalter69 (10/28/06 12:44 PM)

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OfflinePrimate
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Re: Substrate directly on perlite? [Re: EWalter69]
    #6220911 - 10/28/06 12:53 PM (17 years, 5 months ago)

there's no point. you'll be fruiting it just like a PF cake, with one side cased. You can either :

a: do as i said in my last post.

b: fill the entire bottom of your fruiting chamber tub with your substrate, then case it. Using no perlite. This is a mono-tub tek..search for mono tub and you'll find alot of info.

Like i said u can put yer casing just on tinfoil. but this is gonna mostly nullify the perlite anyway. perlite needs surface area to provide humidity. if you cover it all with foil there really isnt much point. Also like i said earlier you dont want the sides of your substrate exposed to light. just the top casing layer. because pins will form on the sides of your substrate; which the point of a casing layer is to make the pins form on the casing layer...not the sides of your substrate. this is because the casing layer provides a better enviroment to get good pinsets then just uncased substrate. This is why u want your casings in some sort of containers. so they can only pin on the cased part of your substrate.

Your casing should be in something like this:



then that tray should be put on top of your perlite.

-Prim


--------------------
"Power to the peaceful"

-Micheal Franti and Spearhead

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