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Amanita virosa
botanist by day


Registered: 12/04/11
Posts: 2,458
Loc: north kakalacky
Last seen: 6 months, 17 days
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Quote:
CAP_TURTLE said: It wasn't what I thought directly caused it but gypsum brings ph down? I was attributing it to the fact the grows I used it in wouldn't fruit and after the mycelia seemed to set dormant for some time, while other bags I didn't use it in fruited, they eventually showed trich. Maybe I added too much but I was following what I read others were doing. I also had read others have the same situation where they directly blamed it. Either way my grows have been going great for some time and i have 5 different species fruiting together right now so I'm hesitant to mess with it too much. I had also suspected maybe fungicides were present in the gypsum since i used broken dry wall but my investigations showed it not to be. Thats why if I try it again it has to be horticultural and likely should have been to begin with.
Gypsum should have very little (no) effect on ph. The calcium and mg buffer the sulphur. In fact in agriculture we use gypsum to provide calcium when we already have optimal ph in the soil and therefore cannot add lime.
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drake89
Mushroom Magnate



Registered: 06/26/11
Posts: 4,168
Loc: TN
Last seen: 4 years, 10 months
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yeah I would use ag grade, god only knows what's in drywall!
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CAP_TURTLE
Adventurer



Registered: 03/11/05
Posts: 1,135
Last seen: 5 years, 8 months
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Re: Supplementing [Re: drake89]
#19111473 - 11/09/13 06:24 PM (10 years, 2 months ago) |
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Yeah thats why I stopped using it too. All the active cultivators don't care and it was alot of their threads that came up in the searches thought that was my thought that I had to counteract it with something and was bringing the PH down too far. It's nice to know that wasn't the case now so thanks all for learning me
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 4 days
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Most of the commercial recipes are based on dry weight ratios, but in reality once you get your best substrate mix figured out, you'll build them by a handful of this and a handful, bucketful, wheelbarrow, etc., of that.
S75 will form mutants if too much bran is used. It will also give a lot of mutants if fruited too early. It's a great strain though with large, meaty fruits which sell very well. 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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CAP_TURTLE
Adventurer



Registered: 03/11/05
Posts: 1,135
Last seen: 5 years, 8 months
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When I was reading through threads most of my info came from talk between you RR and EM666. Another question, my s75 came from out-grow and alot of people sell the "s75" strain. Are they the same strain across the board or would you imagine everyone ahs their own as it'd be illegal to resell say aloha's s75 right? I'm about to see how much 1/8 cup of bran weighs and see how much i'm actually supplementing as well.
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CAP_TURTLE
Adventurer



Registered: 03/11/05
Posts: 1,135
Last seen: 5 years, 8 months
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Ok so i weighed the 1/8 cup of bran i ahve been using and it weighs 8.4g. based on memory from yesterday as i couldnt find my scribbles my 1.5 qts of dry pellets weigh 1.86lbs so all math done i am only supplementing my shiitake blocks 1 percent or so. Maybe this is why I get away with 350-400 ml of spawn. I wonder how different my colonization would be with 5% supplementaion and much less spawn as Aleon had said but I get full browning in around 2 months maybe a slight bit more and no mutants. So I hesitate to change anything but wonder how overall BE would change with higher supplementation lower spawn rate. Any insight appreciated.
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RogerRabbit
Bans for Pleasure



Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 4 days
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Bran in excess will deliver mutants where slightly more grain spawn will not. Don't ask why-I don't know. In fact, pure grain spawn will fruit nice mushrooms, not mutants.
I finally settled on about 2 cups of rice bran per 20 six to seven pound substrate bags by experimentation. I also found a bit of horse manure in the sawdust makes for bigger and heavier fruits without the mutant problem. 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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Forrester
aspiring sociopath


Registered: 02/05/13
Posts: 9,351
Loc: Northeast USA
Last seen: 25 days, 9 hours
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Quote:
RogerRabbit said: Bran in excess will deliver mutants where slightly more grain spawn will not. Don't ask why-I don't know. In fact, pure grain spawn will fruit nice mushrooms, not mutants.
Somehow I managed to grow quite a few muties using only grain spawn, I've never used bran. I do a whole jar of spawn for each bag though, which I guess must be too much 
There were many more but I only have pictures of these ones...

(that's not a cut-off piece of cap in the first pic, it actually grew like that)
-------------------- Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here. ------------------- Have some medicinal mushrooms and want to get the most out of them? Try this double extraction method.
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CAP_TURTLE
Adventurer



Registered: 03/11/05
Posts: 1,135
Last seen: 5 years, 8 months
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I'm interested in how much horse manure you use RR. I had this become available to me recently but thought I had no use for it directly for my grows. I do intend to use some for my compost once I get a better idea of how much to use though. Gnarly mutants you got there Forrester! Honestly I'm surprised theres not a market for them cause they'd make for interesting plating lol
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drake89
Mushroom Magnate



Registered: 06/26/11
Posts: 4,168
Loc: TN
Last seen: 4 years, 10 months
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I'm dying to grow some agaricus, or blewit... Get that dung!
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CAP_TURTLE
Adventurer



Registered: 03/11/05
Posts: 1,135
Last seen: 5 years, 8 months
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Re: Supplementing [Re: drake89]
#19115210 - 11/10/13 02:33 PM (10 years, 2 months ago) |
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I have a huge pile of leaf litter i'm covering up for the winter to attempt some blewits
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