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Akamatsu
Seeker

Registered: 01/29/06
Posts: 285
Loc: Australia
Last seen: 2 years, 2 months
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Garden lime as a source of calcium carbonate.
#6772952 - 04/10/07 10:35 PM (16 years, 10 months ago) |
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Reading through RogerRabbits old posts, it seems garden lime is not suitable for use in mycology because it's not water soluble and takes far too long to have any effect on PH. I'm having trouble locating calcium carbonate (crushed oyster shell), but I've found a brand of garden lime that contains the following:
Calcium (Ca) as Calcium Carbonate 32.5% Magnesium (Mg) as Magnesium Carbonate 0.5% Equivalent Calcium Carbonate 80.0% Neutralising value: 91 Passing 850 micron screen 95.0%
It's a fine white powder, and is sold under the brand Yates GRO-PLUS garden lime. Would there be any benefits to adding this to my casing mix, or should I stick with only hydrated lime?
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RogerRabbit
Bans for Pleasure


Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 22 days
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Re: Garden lime as a source of calcium carbonate. [Re: Akamatsu]
#6773534 - 04/11/07 12:42 AM (16 years, 10 months ago) |
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Make sure it's a fine powder. Look for hydrated garden lime. If you can't find it locally, you can order it from best hardware stores. www.doitbest.com Just type 'hydrated lime' into the search engine on their site. Be sure to get the hydrated garden lime, not the masonry stuff.
That stuff might just be ok, but I don't know what it is unless it's powdered limestone, which is great. RR
-------------------- Download Let's Grow Mushrooms 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." Thomas Edison
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lukin
Stranger
Registered: 01/28/07
Posts: 7
Last seen: 14 years, 8 months
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Re: Garden lime as a source of calcium carbonate. [Re: RogerRabbit]
#6773770 - 04/11/07 02:24 AM (16 years, 10 months ago) |
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yeah i had the exact same problem. i couldn't find limestone flour but i got RichGro Garden Lime. I'm not sure how good it is because this is my first grow and i haven't gotten to the casing stage. It a powdery type thing.. its roughly the same size, color and texture of sand...
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