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OfflineChronicBarry
Willy Wonka'sIntern

Registered: 08/15/04
Posts: 155
Loc: Bat Country
Last seen: 15 years, 9 months
Will this work to balance pH of casing
    #7960099 - 01/31/08 01:00 PM (16 years, 1 day ago)

I'm using peat and verm to case my substrate. Will this work to balance my pH? NOW Calcium Carbonate

I don't plan on buying it off eBay but I saw it in the store for cheaper. It's says calcium carbonate and it's in powder form yet they sell it at vitamin and health stores. Will it do the trick?


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InvisibleDay Tripper
Got a goodreason, for taking the easyway out.


Registered: 01/27/08
Posts: 198
Loc: Rocky Mountains
Re: Will this work to balance pH of casing [Re: ChronicBarry]
    #7960158 - 01/31/08 01:20 PM (16 years, 1 day ago)

Get some hydrated lime, oyster shell flour, and gypsum.

Use 5% oyster and 5% gypsum by total volume, and 2.5% lime by the volume of peat used.

About a teaspoon of lime per cup of peat, approximately.

Your starting pH should be around 7.2-7.5 ideally.

The HyLime will go to work immediately, the oyster will slowly raise the pH, and the gypsum will provide a buffer for wild swings either way.



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OfflineChronicBarry
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Registered: 08/15/04
Posts: 155
Loc: Bat Country
Last seen: 15 years, 9 months
Re: Will this work to balance pH of casing [Re: Day Tripper]
    #7961466 - 01/31/08 06:32 PM (16 years, 1 day ago)

I can't find hydrated lime anywhere. The only lime I saw is dolomitic lime and garden lime which had lots of other crap like magnesium. Why would what I found work? It should be soluable and it's pure CaCO3.


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OfflineNibin
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Re: Will this work to balance pH of casing [Re: ChronicBarry]
    #7961510 - 01/31/08 06:42 PM (16 years, 1 day ago)

Oyster shell flour = Calcium Carbonate.

Calcium carbonate is quite slow at changing the pH but longer lasting, while Hydrated Lime is nearly instantaneous.

If you can't find Hydrated Lime, calcium carbonate is better than nothing and certainly better than dolomitic lime, which is a big no no.


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OfflineRogerRabbitM
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Registered: 03/26/03
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Re: Will this work to balance pH of casing [Re: Nibin]
    #7961922 - 01/31/08 08:16 PM (16 years, 1 day ago)

Lime IS calcium carbonate. You don't need food grade. Check a nursery.
RR


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OfflineChronicBarry
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Registered: 08/15/04
Posts: 155
Loc: Bat Country
Last seen: 15 years, 9 months
Re: Will this work to balance pH of casing [Re: RogerRabbit]
    #7961994 - 01/31/08 08:30 PM (16 years, 1 day ago)

I've gone everywhere and can't find lime. As long as the food grade CaCO3 will instantly adjust my peat, then I'm willing to pay a little more for it than hunt the rest of my life for horticultural hydrated lime.


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OfflineNibin
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Re: Will this work to balance pH of casing [Re: RogerRabbit]
    #7963026 - 02/01/08 12:30 AM (16 years, 1 day ago)

Quote:

RogerRabbit said:
Lime IS calcium carbonate. You don't need food grade. Check a nursery.
RR




Hydrated lime is calcium hydroxide Ca(OH)2 while calcium carbonate is CaCO3 and is the active ingredient in agricultural lime.


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OfflineScavengerType
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Registered: 01/24/08
Posts: 5,784
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Re: Will this work to balance pH of casing [Re: Nibin]
    #7963125 - 02/01/08 01:00 AM (16 years, 1 day ago)

look for an agricultural supplies store in your area.


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Offlinemycofreak107
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Registered: 01/18/08
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Last seen: 15 years, 11 months
Re: Will this work to balance pH of casing [Re: ChronicBarry]
    #7963395 - 02/01/08 04:31 AM (16 years, 22 hours ago)

I hope this settles the chalk dillema.
Straight from Crayola (you can also use Prang)

Crayola manufactures two types of chalk, extruded and molded. Extruded chalk, such as Crayola Anti-Dust White Chalk, primarily contains calcium carbonate. Molded chalk, such as Crayola Children's Chalk (available in white or colored), is a softer chalk, made of plaster of paris. This type of chalk is not dustless and not recommended for chalkboard use.

You can use the white chalk, or the anti dust chalk.
The chalk is 95% pure calcium carbonate.
only cost $2.


Edited by mycofreak107 (02/01/08 04:35 AM)


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OfflineNibin
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Re: Will this work to balance pH of casing [Re: mycofreak107]
    #7965732 - 02/01/08 04:59 PM (16 years, 9 hours ago)

Molded chalk = plaster of paris = gypsum


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OfflineRogerRabbitM
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Re: Will this work to balance pH of casing [Re: Nibin]
    #7965899 - 02/01/08 05:37 PM (16 years, 9 hours ago)

By it's all lime, I meant from limestone. Different processes go into manufacturing the various types.
RR


--------------------
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semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
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InvisibleDay Tripper
Got a goodreason, for taking the easyway out.


Registered: 01/27/08
Posts: 198
Loc: Rocky Mountains
Re: Will this work to balance pH of casing [Re: RogerRabbit]
    #7965969 - 02/01/08 05:58 PM (16 years, 8 hours ago)

Use Hy-Lime for fast pH adjustments up, oyster for long term release, and gypsum to prevent wild swings either way.


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OfflineNibin
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Re: Will this work to balance pH of casing [Re: Day Tripper]
    #7967275 - 02/02/08 12:05 AM (16 years, 2 hours ago)

Quote:

Day Tripper said:
Use Hy-Lime for fast pH adjustments up, oyster for long term release, and gypsum to prevent wild swings either way.




Use Hydrated Lime for fast pH adjustments, calcium carbonate (oyster) for long term release AND to prevent swings and gypsum as a nutritional supplement, with the added advantage that it helps buffer swings.


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