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OfflineRobbyrob
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50/50 ?
    #1445898 - 04/10/03 09:35 AM (14 years, 4 months ago)

peeps how important is the crushed oyster shells and the calcium carbonate in this mix? Meaning what will happen if i make my casing laye without this. Not that i want to but i just wanted to know role in these 2 and if they absolutly needed.

Rob


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Offlinemikejwill
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Re: 50/50 ? [Re: Robbyrob]
    #1445905 - 04/10/03 09:43 AM (14 years, 4 months ago)

my great grandmother has cased without them and had great results.  the reason for these is to up the PH, which can also be done with agricultural lime (and it makes to  twist them off easier)
She says PH is important, but where you get it is not.
but that's her opinion :smile:





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OfflineRobbyrob
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Re: 50/50 ? [Re: mikejwill]
    #1445917 - 04/10/03 09:54 AM (14 years, 4 months ago)

will dolimite lime be to strong for the mushies? reason i ask is because i heard that lime if not used correctly can burn the mycelium and it wont grow at all.

Rob


Edited by Robbyrob (04/10/03 09:55 AM)


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Offlinemikejwill
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Re: 50/50 ? [Re: Robbyrob]
    #1445925 - 04/10/03 09:59 AM (14 years, 4 months ago)

dolimite lime? i haven't heard of this....
i know with hydrated lime you have to worry about burning them.
but i think with just regular Lime (sand like stuff) you can add as much as you want and it won't put the PH over 8.


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Enema Bag Jones

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Re: 50/50 ? [Re: Robbyrob]
    #1445944 - 04/10/03 10:12 AM (14 years, 4 months ago)

Oyseter shells are calcium carbonate.

A little gypsum flour does the trick i think.


--------------------
Man thinks. God laughs. - Jewish Proverb


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OfflineRobbyrob
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Re: 50/50 ? [Re: no-tone]
    #1445971 - 04/10/03 10:31 AM (14 years, 4 months ago)

i got this from the FAQ

Quote:

Although most people including us have great success from using horticultural hydrated lime, some do not. They end up burning there mycelium or the mycelium just never colonizes through to the casing soil. We think perhaps the hydrated lime they are buying has a much higher alkaline level then then the Hi Yield brand we are using. Hi Yield brand is our preference and works great for us. But just to play it on the safe side, we are going to suggest you buy calcium carbonate.

Another tip, look for the large chunked oyster shell sold at feed stores. The fine powder shell is fine, the but the large chunked shell gives a much better texture and the mushrooms grow even better on this soil. You can find oyster shell anywhere birds are sold, or at most feed stores.

The exact mix, to fill a filter patch bag 3/4 full is:

15 1/2 cups vermiculite
15 1/2 cups peat moss
4 1/2 cups crushed oyster shell
1.2 cups of hydrated lime
1 cup short of a gallon of bottled water






so do i need both or are the actual oyster shells the calc. carbonate? since they include both in the receipy i wonder is the oyster shells a cal. carbonate or are the FAQ wrong?

rob


Edited by Robbyrob (04/10/03 10:36 AM)


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InvisibleDiploidM
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Re: 50/50 ? [Re: Robbyrob]
    #1445980 - 04/10/03 10:35 AM (14 years, 4 months ago)

Quote:

will dolimite lime be to strong for the mushies?




Don't use dolomitic lime. Its source contains too much magnesium which has been shown to retard mushroom growth.

You can use straight 50/50 with pretty good results, but to optimize yields, you'll need a pH meter and non-dolomitic lime (or other base) to adjust the pH to around 7.5.

-Diploid


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4) We need a smaller, less-intrusive government.


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Enema Bag Jones

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Re: 50/50 ? [Re: Robbyrob]
    #1445984 - 04/10/03 10:39 AM (14 years, 4 months ago)

Yep, oyster shells are calcium carbonate, albeiht (sp) a vary coase grade.


--------------------
Man thinks. God laughs. - Jewish Proverb


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OfflineRobbyrob
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Re: 50/50 ? [Re: Diploid]
    #1445985 - 04/10/03 10:40 AM (14 years, 4 months ago)

ok this is what i wonder..

a - is the oyster shell the same as calcium carbonate

b. are oyster shells and calcium carbonate 2 different things.

c. can i go 50/50 with some calcium carbonate and no oyster shells and still get a goiod yeild.


Rob


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OfflineRobbyrob
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Re: 50/50 ? [Re: no-tone]
    #1445986 - 04/10/03 10:41 AM (14 years, 4 months ago)

Quote:

Yep, oyster shells are calcium carbonate, albeiht (sp) a vary coase grade.





ok thanks to beat me to my post..

gotta go to homedepot now!

rob


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Enema Bag Jones

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Re: 50/50 ? [Re: Robbyrob]
    #1446079 - 04/10/03 11:34 AM (14 years, 4 months ago)

Good Luck!!


--------------------
Man thinks. God laughs. - Jewish Proverb


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OfflineRobbyrob
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Re: 50/50 ? [Re: no-tone]
    #1446152 - 04/10/03 12:11 PM (14 years, 4 months ago)

i dont really need this since its for long term ph buffer do i? i mean can get the chackly powdery calcium carbonate and just use this right?


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Enema Bag Jones

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Re: 50/50 ? [Re: Robbyrob]
    #1446171 - 04/10/03 12:20 PM (14 years, 4 months ago)

Yes, the flour would be much better.


--------------------
Man thinks. God laughs. - Jewish Proverb


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OfflineRobbyrob
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Re: 50/50 ? [Re: no-tone]
    #1446186 - 04/10/03 12:28 PM (14 years, 4 months ago)

thanks!!

peace!


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OfflineE Tard
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Re: 50/50 ? [Re: no-tone]
    #1446925 - 04/10/03 04:12 PM (14 years, 4 months ago)

Quote:

Yes, the flour would be much better.




can you purchase the flour at stores? if so, how strong is it? The reason im asking is because i knew my friend would be using some for his future casings so he swiped a jar of calcium carbonate from his chem lab. if he were to use it, how much would he want to use?


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Enema Bag Jones

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Re: 50/50 ? [Re: E Tard]
    #1454867 - 04/13/03 05:21 PM (14 years, 4 months ago)

Maybe someone with TMC could tell you, Stamets gives recipes in it.


--------------------
Man thinks. God laughs. - Jewish Proverb


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Anonymous

Re: 50/50 ? [Re: no-tone]
    #1454876 - 04/13/03 05:27 PM (14 years, 4 months ago)

TMC says to use 4 parts coarse peat, 1 part limestone flour, 1/2 part limestone grit, approx. 2-2 1/4 parts water (all measurements by volume).


Edited by Anonymous (04/13/03 05:28 PM)


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