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navyseals101
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Registered: 09/16/04
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Balancing Ph? *confused as hell*
#6822871 - 04/23/07 11:52 AM (17 years, 8 months ago) |
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So whats calcium carbonate and gypsum for? Isnt one to lower the Ph and one to raise it? if so do i need both?
-------------------- "Ten thousand flowers in spring
the moon in autumn,
a cool breeze in summer,
snow in winter.
If your mind isn't clouded by unnecessary things,
this is the best season of your life."
-wumen
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navyseals101
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Re: Balancing Ph? *confused as hell* [Re: navyseals101]
#6822879 - 04/23/07 11:55 AM (17 years, 8 months ago) |
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im going to be making a 50/50 peat/verm casing and I want to know what I need to ensure correct Ph levels.
-------------------- "Ten thousand flowers in spring
the moon in autumn,
a cool breeze in summer,
snow in winter.
If your mind isn't clouded by unnecessary things,
this is the best season of your life."
-wumen
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Swan Song

Registered: 02/08/06
Posts: 559
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Re: Balancing Ph? *confused as hell* [Re: navyseals101]
#6822894 - 04/23/07 12:00 PM (17 years, 8 months ago) |
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buy some swimming pool test strips that measure PH. if i am not mistaken you want to be around 7 to 7.5ph.
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MasFina
Snow Shredder



Registered: 05/08/06
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Loc: Mountains
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Re: Balancing Ph? *confused as hell* [Re: Swan Song]
#6822924 - 04/23/07 12:12 PM (17 years, 8 months ago) |
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Equal parts gypsum and Oyster Shell (course calcium carbonate, best kind to use) Flour at 10% of organic matter (peat). 2 tbs hydrated lime to every 12-15 cups organic matter (add before water!)
Sterilizing in a PC seems to work for me.
Both calcium carb and gypsum raise ph slightly. They keep it high in the long run. Hydrated lime gets it high (to whatever level you want) quickly.
You might want to compare my hydrated lime amount recommendation with someone elses first. It could be a little off. Get ph test strips at a hydroponics store or garden center and shoot for 7.5-8.5, and no higher.
Hyd lime and gypsum->garden center Oyster Shell flour->really good garden center or Pet Store (bird bedding, Pet Smart has it here)
-------------------- A Good Substrate: Poo With Extras
Good Liquid Culture, Step by Step
Timer Modification
PM me if you are interested in buying 140ml syringes. $6 each + $7 shipping
Edited by MasFina (04/23/07 12:13 PM)
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RogerRabbit
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Re: Balancing Ph? *confused as hell* [Re: MasFina]
#6823026 - 04/23/07 12:41 PM (17 years, 8 months ago) |
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Actually, gypsum contains calcium which raises pH, and sulfur which lowers pH, resulting in a buffer that prevents wild swings in either direction.
We use lime to raise the pH only for the reason that mushroom mycelium is more tolerant of a high pH than mold mycelium is. Both mushroom and mold mycelium grow best in a pH of around 5.5 to 6, but since mushroom mycelium can tolerate the higher pH, we do that so our casing layer favors it over molds. I use 1 teaspoon of hydrated lime per cup of peat. Don't figure the verm when calculating lime. Use gypsum at 5% to 10% by volume of the amount of peat. In other words, for ten cups of peat, use 1/2 to 1 cup of gypsum. As said above, always mix the dry ingredients first, then add water.
Gypsum, as I said, prevents swings in either direction, but the commercial growers long ago realized that it also increases disease resistance and also increases the size of the mushrooms by providing valuable trace nutrients and minerals. 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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navyseals101
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Re: Balancing Ph? *confused as hell* [Re: RogerRabbit]
#6823072 - 04/23/07 12:53 PM (17 years, 8 months ago) |
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I dont have lime do I need it if i have gypsum and calcium carbonate?
-------------------- "Ten thousand flowers in spring
the moon in autumn,
a cool breeze in summer,
snow in winter.
If your mind isn't clouded by unnecessary things,
this is the best season of your life."
-wumen
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navyseals101
Stranger



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Re: Balancing Ph? *confused as hell* [Re: navyseals101]
#6823190 - 04/23/07 01:21 PM (17 years, 8 months ago) |
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can i use a small ammount of vitamin C to raise the Ph?
-------------------- "Ten thousand flowers in spring
the moon in autumn,
a cool breeze in summer,
snow in winter.
If your mind isn't clouded by unnecessary things,
this is the best season of your life."
-wumen
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RogerRabbit
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Re: Balancing Ph? *confused as hell* [Re: navyseals101]
#6823197 - 04/23/07 01:23 PM (17 years, 8 months ago) |
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Calcim carbonate IS lime, and it has nothing at all to do with vitamin C. 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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navyseals101
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Re: Balancing Ph? *confused as hell* [Re: RogerRabbit]
#6823224 - 04/23/07 01:29 PM (17 years, 8 months ago) |
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lol i know roger rabit that it has nothing to do with vitamin C. But hey i just read your other post saying that cc is lime thanks!
-------------------- "Ten thousand flowers in spring
the moon in autumn,
a cool breeze in summer,
snow in winter.
If your mind isn't clouded by unnecessary things,
this is the best season of your life."
-wumen
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MasFina
Snow Shredder



Registered: 05/08/06
Posts: 788
Loc: Mountains
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Re: Balancing Ph? *confused as hell* [Re: navyseals101]
#6823621 - 04/23/07 03:06 PM (17 years, 8 months ago) |
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Man, I always get so close to getting it right and then RR comes in and saves the day. I was pretty close though. I think I learn more by giving bad advice than by asking questions, lol.
Thanks as usual Roger
-------------------- A Good Substrate: Poo With Extras
Good Liquid Culture, Step by Step
Timer Modification
PM me if you are interested in buying 140ml syringes. $6 each + $7 shipping
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RogerRabbit
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Re: Balancing Ph? *confused as hell* [Re: MasFina]
#6823854 - 04/23/07 04:09 PM (17 years, 8 months ago) |
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Quote:
But hey i just read your other post saying that cc is lime thanks!
I hope you're not thinking of those little green citrus fruits when you think of lime/vitamin C. When we say 'lime' in mycology, we're referring to ground limestone, which is a mineral from the earth, not a fruit. 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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navyseals101
Stranger



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Re: Balancing Ph? *confused as hell* [Re: RogerRabbit]
#6824640 - 04/23/07 07:51 PM (17 years, 8 months ago) |
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ah roger I know that. Ive got ground calcium carbonate its the right stuff
-------------------- "Ten thousand flowers in spring
the moon in autumn,
a cool breeze in summer,
snow in winter.
If your mind isn't clouded by unnecessary things,
this is the best season of your life."
-wumen
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johnnyboy
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Re: Balancing Ph? *confused as hell* [Re: navyseals101]
#6824880 - 04/23/07 08:49 PM (17 years, 8 months ago) |
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if youare spawning should you add some gypsum and lime to that also if so what would the ratio be. thanks much guys
-------------------- I keep the bible in a pool of blood so that none of it's lies will affect me
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Grogan
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Re: Balancing Ph? *confused as hell* [Re: johnnyboy]
#6825580 - 04/23/07 11:42 PM (17 years, 8 months ago) |
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HOLY CRAP.. did I mess up ...
I added one teaspoon of lime per cup of 50/50 not per cup of peat 
I also added about half a cup of lime to a brick of coir that I spawned to.. is this ok?
-------------------- "Maybe a cow occasionally ate a shroom, but it certainly wouldn't be such a potent shroom that the cow would be trippin balls. " LOL
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exagram
Phear the shroom



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Re: Balancing Ph? *confused as hell* [Re: RogerRabbit]
#6825763 - 04/24/07 12:27 AM (17 years, 8 months ago) |
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Quote:
RogerRabbit said: Calcim carbonate IS lime, and it has nothing at all to do with vitamin C. RR
Not to mention vitamin C is an acid.
-------------------- Raoul Duke: What Leary took down with him was the central illusion of a whole lifestyle that he helped create - a generation of permanent cripples, failed seekers, who never understood the essential old-mystic fallacy of the acid culture: the desperate assumption that somebody, or at least some force, is tending the light at the end of the tunnel.
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