so... how much gypsum do you add to your substrate... per brick? - Mushroom Cultivation

Home | Community | Message Board

You are not signed in.
New Account

Forum Index Search Posts Trusted Vendors Highlights Galleries FAQ User List Chat Store Random Growery

This site includes paid links. Please support our sponsors.

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop:

Bulk Substrate

Certified Organic All-In-One Grow Bags

Jump to first unread post

Pages: 1

Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.

imnotthere

Registered: 02/23/08
Posts: 343

so... how much gypsum do you add to your substrate... per brick?

#9082681 - 10/15/08 05:45 PM (15 years, 6 months ago)

so I know 5-10% by volume as stated by several trusted cultivators.

but how much is like 10% of a brick of coir for instance?

I've been adding like 1/2 cup per brick of coir... but this is probably far less than 10%.

Perhaps math could calculate this more accurately, but I'm not sure of the volume of hydrated coir.

How much gypsum do you all use per brick of coir for instance?

I'm just not sure if my gypsum addition is making any difference to my sub - only half cup per brick...

Extras:

Top

gawn
Stranger

Registered: 02/03/08
Posts: 158
Last seen: 13 years, 7 months

Re: so... how much gypsum do you add to your substrate... per brick?

[Re: imnotthere]
#9083175 - 10/15/08 07:25 PM (15 years, 6 months ago)

im wondering the same thing ? anybody?

Extras:

Top

RogerRabbit
Bans for Pleasure

Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 1 year, 1 month

Re: so... how much gypsum do you add to your substrate... per brick?

[Re: gawn]
#9084194 - 10/15/08 10:19 PM (15 years, 6 months ago)

One handful of gypsum to ten handfuls of hydrated coir or other substrate material will get you close enough. Of course, the math geeks will argue that's only 9%.
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

Extras:

Top

imnotthere

Registered: 02/23/08
Posts: 343

Re: so... how much gypsum do you add to your substrate... per brick?

[Re: RogerRabbit]
#9084294 - 10/15/08 10:38 PM (15 years, 6 months ago)

lol- well how many handfuls you think are in a brick of coir? of course your method there would work RR. makes my question look dumb.

I did find since I posted there that a brick of coir makes about 8 quarts hydrated. That equals 32 cups. so 10% is 3.2 cups...

I was using like half a cup per brick... So I conclude I am using far too little and my theory that I was using too little to benefit is probably true.

You think its safe then if I step up to several cups per brick? I usually put 2 bricks of coir plus some verm into a bucket, so I guess like 5 or 6 cups ought to come in safely below 10%.

I guess its trickier cause I like to dry mix everything in a bucket then add the 180 degree water and cover - thus pasteurizing and hydrating at the same time. Different then you do it RR I beleive.

And I just got your DVD RR, but skipped ahead to the agar section. Gonna pop some corn and watch this weekend.

Extras:

Top

Damion5050
Mush Doctor

Registered: 05/01/08
Posts: 12,493
Loc: Lost In Translation !

Last seen: 3 years, 2 months

Re: so... how much gypsum do you add to your substrate... per brick?

[Re: imnotthere]
#9084401 - 10/15/08 10:56 PM (15 years, 6 months ago)

A brick of coir is roughly 9 liters which is 36 cups so 10% of that would be 3.6 cups.. So add roughly 4 cups to a brick of coir... :2cents:

--------------------
AMU Q&A :plot:

AMU Genetic Library :stirthepot:

My Elementary Coir Tek

My Elementary Liquid Culture (LC) Tek

Educational Cultivation Link Collection

Extras:

Top

imnotthere

Registered: 02/23/08
Posts: 343

Re: so... how much gypsum do you add to your substrate... per brick?

[Re: Damion5050]
#9084565 - 10/15/08 11:34 PM (15 years, 6 months ago)

yeah, roughly what I came up with. I just rounded down some cause 5-10% is ideal, and I didn't wanna risk going over that.

So there we have at least a basis to go off of, rather than just calling it 10% of volume, for those of us who prefer at least a ballpark to play in.

I'm satisfied unless RR has something to add, cause I don't think coir is in the DVD any...

Thanks

Extras:

Top

Jump to top

Pages: 1

Shop:

Bulk Substrate

Certified Organic All-In-One Grow Bags

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation

Similar Threads	Poster	Views	Replies	Last post
dolomite lime vs. hydrated lime	e7c	5,783	2	05/24/03 10:03 PM by fugu
Dont know how much hydrated lime I need (50/50+)..	Northernsoul	2,542	13	12/24/09 10:34 PM by stoner42001
The Horrible Secret About Gypsum	Anonymous	2,059	6	03/27/03 11:37 AM by ExtravagantDream
How to Make A Straw Based Substrate ( 1 2 all )	Lana	15,209	23	08/13/13 02:16 PM by saskuats
Pre mixed casing substrate yea!!	delysid_1	2,566	8	04/27/02 02:53 PM by delysid_1
Sterilising VS Pasteurising Coir Based Substrates	Inoculationn	2,110	9	05/07/21 01:00 PM by PrimalSoup
Potency vs Substrate	Seuss	5,847	10	05/21/02 02:05 PM by Baby_Hitler
Re-Hydrate Casing	bladerunnerss	1,849	6	09/17/02 06:04 PM by matts

Extra information

You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, veggie, mushboy, fahtster, LogicaL Chaos, 13shrooms, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
3,809 topic views. 29 members, 245 guests and 70 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]