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InvisibleLanaV
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Hydro/Agri/Dolo Lime - Define it!
    #1765517 - 07/31/03 11:02 AM (14 years, 2 months ago)

I have a question for y'all. And I'm sure its been asked before but I want more technical answers.

Whats the difference between agricultural, dolomite and hydrated lime.

Now I know that dolomite and hydrated are generally used (or should I say termed) as the same.

But I know the difference between agricultural lime and hydrated dolomite is the addition of magnesium.

Agricultural lime is a very slow working lime, can take months to kick in (its popular with composting). But the added kick of magnesium helps it work faster.

If anyone can add to this I'd appreciate it. My reason for asking is "supposedly" some limes are better in casings than others.

Any thoughts?

Thanks a TON

Lana




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OfflineAnnoA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Lana]
    #1765639 - 07/31/03 12:08 PM (14 years, 2 months ago)

Banana, it?s all in the faq.... almost all, so to say.... :wink:
Here:
http://www.shroomery.org/index/par/23684
http://www.shroomery.org/index/par/23439
http://www.shroomery.org/index/par/23460 

>Now I know that dolomite and hydrated are generally used (or should I say termed) as the same.

Hmmm, I don?t think this is correct.


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OfflineSeussA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Anno]
    #1765655 - 07/31/03 12:15 PM (14 years, 2 months ago)

Dolomite is Calcium Magnesium Carbonate or CaMg(CO3)2, if I remember my geology correctly. If magnesium is bad for mushrooms, then you do not want to use dolomite.


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OfflineAnnoA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Seuss]
    #1765661 - 07/31/03 12:17 PM (14 years, 2 months ago)

You do rememeber correctly.

" A common rock-forming rhombohedral mineral CaMg(CO3)2. Some of the magnesium may be replaced by iron (Fe). Dolomite is white, colorless, or tinged yellow, brown, pink, or gray, it has perfect rhombohedral cleavage and a pearly to vitreous luster, effervesces feebly in cold dilute hydrochloric acid, and forms curved, addle-like crystals. Dolomite is found in extensive beds as dolomite rock. (Rock) A carbonate sedimentary rock of which more than 50% by weight or by areal percentages under the microscope consists of the mineral dolomite; A carbonate sedimentary rock containing more than 90% dolomite and less than 10% calcite. Dolomite occurs in crystalline and noncrystalline forms, is clearly associated and often interbedded with limestone and usually represents postdepositional replacement of limestone. Named after Deodat Guy de Dolomieu (1750-1801), French geologist, and first applied to certain carbonate rocks of the Tyrolean Alps."


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InvisibleLanaV
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Anno]
    #1765692 - 07/31/03 12:36 PM (14 years, 2 months ago)

Thanks guys.

/me give Anno a big wet KISS! 

:smile:

Lana


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Invisiblee7c
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Lana]
    #1765740 - 07/31/03 01:00 PM (14 years, 2 months ago)

so is using dolomitic lime to adjust the PH of a casing mix very bad, moderately bad, or merely ineffective?


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OfflineSeussA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: e7c]
    #1765807 - 07/31/03 01:30 PM (14 years, 2 months ago)

It depends upon how much magnesium (Mg) effects the species of mushroom that you are trying to grow. I think it was in TMC by Staments that I read about magnesium being bad for some species, but I do not have the book handy to verify this or to look up which species he was refering.


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OfflineAnnoA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Seuss]
    #1766037 - 07/31/03 02:51 PM (14 years, 2 months ago)

He was referring to Agaricus species, if my memory serves me.


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InvisibleLanaV
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Anno]
    #1766230 - 07/31/03 03:55 PM (14 years, 2 months ago)

Hmmm...  so what percentage of magnesium would be bad for exotics? 

The plot thickens :smile:

Lana


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Invisiblemicro
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Lana]
    #1767115 - 07/31/03 08:43 PM (14 years, 2 months ago)

Stamets recommends below 2%. I've used >13% with cubies without a problem.

With regard to the original topic, hydrated lime is Ca(OH)2 (calcium hydroxide) and is a lot more water soluble.

--
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OfflineSeussA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: micro]
    #1768477 - 08/01/03 07:40 AM (14 years, 2 months ago)

With hydrated lime one must be careful to check the pH of the final substrate as it can easily become too basic.


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InvisibleLanaV
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Seuss]
    #1768504 - 08/01/03 08:22 AM (14 years, 2 months ago)

In response to Anno's post

http://www.nansnook.com/archives/297.html

Lana


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InvisibleHippie3
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Lana]
    #1780893 - 08/05/03 09:39 AM (14 years, 2 months ago)

boy, that nan is a real piece of work.
not only is most of that thread a plagarized copy of a thread in mycotopia's archives, but he's gone so far as to remove my name from my posts.
note wherever you see "quote" as the poster's name,
that's me.
and here's the url to the ORIGINAL un-edited thread at mycotopia.
http://www.mycotopia.net/discus/messages/5/297.html?

check the dates, you'll see the thread was posted at mycotopia long before nan's nook ever existed.


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OfflineSeussA
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Hippie3]
    #1780917 - 08/05/03 09:58 AM (14 years, 2 months ago)

If I take your name off something, doesn't it become mine?  :grin:


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InvisibleHippie3
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Re: Hydro/Agri/Dolo Lime - Define it! [Re: Seuss]
    #1780924 - 08/05/03 10:01 AM (14 years, 2 months ago)

i guess so.
until you get caught.


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