Home | Community | Message Board
You are not signed in.
Sign 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
Threaded Mode Threaded  Previous topic Previous  View all topics Index  Next topic Next 

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login 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: Sporeworks.EU Spores for European Microscopy   MagicBag.co Certified Organic All-In-One Grow Bags   North Spore Bulk Substrate   Original Sensible Seeds Bulk Cannabis Seeds

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Some of these posts are very old and might contain outdated information.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.
Proper amount of gypsum with coir sub
    #18354767 -

I've been searching posts to figure out how much gypsum I should add to coir/verm substrate and RR suggests about 5-10 % per DRY volume.

How in the hell to I figure that out if I'm using a compressed brick of coir? :shrug:
I've got to hydrate first to get any idea on what the volume would be.

Lets put it this way: I have 6 quarts of field capacity coir/verm sub. 5% of that by volume would be 1.2 cups. I just added 1 cup of gypsum to my already wet sub. Is this too much to the point where it will hinder the grow?

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: Novanity1]
    #18354944 -

I normally add 1/4 cup pelletized gypsum per brick of coir. Has worked like a dream.

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: MattyMushies]
    #18354957 -

Stick hand in bag of gypsum...  make fist... pull out and drop in mixing bucket....

Close enough for me.


--------------------
~-~Save time and increase spawn production with extra large filter bags~-~

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: BloodKil]
    #18355095 -

RR said he has gone down to 3% with no noticeable performance loss.  More won't hurt, just wastes gypsum.  A few growers use 1 cup per brick, I have been using half cup but I think I will go to 1 cup.  Actually considering the verm, 3% of 14 quarts is 1.68 cups.


--------------------

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: thundahoof]
    #18355399 -

Remember that pelletized gypsum is much more dense that granulated.

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: MattyMushies]
    #18355736 -

I don't like the bucket tek, I put my sub in jars and pasteurize on the stove. Unfortunately, I also don't do large enough grows to use a full brick at a time. Normally about a 1/4 brick. So I guess I really over-did it. 1/4 cup might be a good spot to start I guess...

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: MattyMushies]
    #18355766 -

MattyMushies said:
Remember that pelletized gypsum is much more dense that granulated.


It's the same thing.  They just take powder gypsum and add a binding agent so it will flow through automatic spreaders on large farms.  If they tried to use powder gypsum it would jam and clog the equipment.

Use as said above about 2% to 3% gypsum by dry weight.  If you just have to wing it, simply add a handful of gypsum for every 50 or so handfuls of your substrate.  I used to use ten percent, but have since found that less is just as good.  If you have a low calcium water source(soft), you might use a bit more, and if your water supply is hard, use a bit less.

You don't have to dissolve the granular gypsum first.  Just mix it in to the substrate and it will fall apart when it gets damp.
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: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: RogerRabbit]
    #18355787 -

RogerRabbit said:
MattyMushies said:
Remember that pelletized gypsum is much more dense that granulated.


It's the same thing.  They just take powder gypsum and add a binding agent so it will flow through automatic spreaders on large farms.  If they tried to use powder gypsum it would jam and clog the equipment...

...You don't have to dissolve the granular gypsum first.  Just mix it in to the substrate and it will fall apart when it gets damp.
RR


When blending the pelletized gypsum, I've always ended up with much more by volume.

Also when not dissolving the pelletized gypsum, oft I find expanded chunks of gypsum in the substrate that i am left to crumble during spawning.

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: Novanity1]
    #18355867 -

Agreed pasturize on the stove inside jars,  but buckets are perfect for mixing and hydrating your substrate...

As far as hard water goes, I'm stuck with well water, and push 9 on ph lol... (don't know why they didnt put in city water when they ran sewer to our area)  sucks to have to use bottled water for my indoor plants...


--------------------
~-~Save time and increase spawn production with extra large filter bags~-~

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: BloodKil]
    #18355892 -

You could use less gypsum then.  pH9 is awfully caustic.  My well water runs around 8 and works perfectly for mushrooms because the mycelium tends to swing the pH down over time.  It also works great for plants with a bit of citric acid to bring pH back to 6.

Quote:
When blending the pelletized gypsum, I've always ended up with much more by volume.


Don't blend it.  Besides, if it doesn't all dissolve, the chunks won't hurt a thing.  The mycelium will still get what it needs.
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: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: RogerRabbit]
    #18356101 -

RogerRabbit said:
MattyMushies said:
Remember that pelletized gypsum is much more dense that granulated.


It's the same thing.  They just take powder gypsum and add a binding agent so it will flow through automatic spreaders on large farms.  If they tried to use powder gypsum it would jam and clog the equipment.

Use as said above about 2% to 3% gypsum by dry weight.  If you just have to wing it, simply add a handful of gypsum for every 50 or so handfuls of your substrate.  I used to use ten percent, but have since found that less is just as good.  If you have a low calcium water source(soft), you might use a bit more, and if your water supply is hard, use a bit less.

You don't have to dissolve the granular gypsum first.  Just mix it in to the substrate and it will fall apart when it gets damp.
RR


:whathesaid:

RR is back!

:highfive:


--------------------

Yes, you can bump my old threads with a question.
Here is how I get things done.
You should take a look. :hehehe:

Frank's tips and tricks. Updated on 3/21/14
AMU- Get an answer here -AMU

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: RogerRabbit]
    #18356204 -

RogerRabbit said:
MattyMushies said:
Remember that pelletized gypsum is much more dense that granulated.


It's the same thing.  They just take powder gypsum and add a binding agent so it will flow through automatic spreaders on large farms.  If they tried to use powder gypsum it would jam and clog the equipment.

Use as said above about 2% to 3% gypsum by dry weight.  If you just have to wing it, simply add a handful of gypsum for every 50 or so handfuls of your substrate.  I used to use ten percent, but have since found that less is just as good.  If you have a low calcium water source(soft), you might use a bit more, and if your water supply is hard, use a bit less.

You don't have to dissolve the granular gypsum first.  Just mix it in to the substrate and it will fall apart when it gets damp.
RR




RR is that a handful of gypsum for every 50 of WET substrate? My whole dilema here is that I'm only using pieces of a coir brick so I can't really figure out a dry volume.

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: Novanity1]
    #18356267 -

Damn, dude, you think way too much about this.

Grab a big handful. Throw it in.

However much that ends up being, that's the right amount :thumbup:


--------------------

Yes, you can bump my old threads with a question.
Here is how I get things done.
You should take a look. :hehehe:

Frank's tips and tricks. Updated on 3/21/14
AMU- Get an answer here -AMU

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: FrankHorrigan]
    #18356325 -

You mean I don't have to be my usual ocd?!

:thisisheavyman:

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: Novanity1]
    #18356336 -

Not when it comes to adding gypsum...


--------------------
                 
THIS HOBBY IS NOT FOR THE IMPATIENT! PLEASE BE PATIENT, DON'T BE A PATIENT!
A Tale of 10 Isolates, GT Cluster Clone Monotubs, RR's Let's Grow Mushrooms DVD,
SGFC(Shotgun Fruiting Chamber), Monotub Tek, Damion5050's Coir Tek, TL's Tek List, Frank's Tek List,
EvilMushroom666's Pasteurization Tek, How It Should & Shouldn't Look - NEW CULTIVATORS GUIDE
*** *** AFGHAN KUSH GROW LOG *** ***

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: PussyFart]
    #18356349 -

So nice to see so many people active. Woo!! :prance:

:dawerp:


--------------------
            --My Everything You Need To Know Tek--

Disregard the haters and "know it alls", it is everything you need to know TO GET STARTED.

If you want to become an expert, you'll need to do a lot more research.
-----------------------------------------------------------------------
                  Open Your Mind To A New Future
-----------------------------------------------------------------------
                            :amanita2::syringe: :mushroom2::prance::mushroom2::cubie::sporedrop:

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: PussyFart]
    #18356351 -

Notahacker420 said:
Not when it comes to adding gypsum...


:mindblown:

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: FrankHorrigan]
    #18356684 -

FrankHorrigan said:
Damn, dude, you think way too much about this.

Grab a big handful. Throw it in.

However much that ends up being, that's the right amount :thumbup:



Pretty much what i ended up doing. bulk into my mixing bowl. and sprinkled over some gypsum, um yeah that looks right lol


Interesting what RR said about soft water and hard water. Its softwater where i live. We have very good water out where i am and im pretty close the water plant where it comes from.


--------------------

PF TEK - writeup by EvilMushroom666
Lets Grow Mushrooms - RogerRabbit & RoadKills website with sample videos plus the full PF TEK video series. Alot of great information - BUY THE DVD
Cakes can and will pin! - So you think cakes suck for pins. Your wrong
Franks Simple Coir/Verm Tek
Franks Proper Pasturisation Tek
Franks Spawning To Bulk - Monotub
Professor Pinheads RTV Injection Port Tek
Foo Mans No Soak WBS Prep Tek

Extras: Filter Print Post Top
Re: Proper amount of gypsum with coir sub [Re: Novanity1]
    #18357300 -

Novanity1 said:
You mean I don't have to be my usual ocd?!

:thisisheavyman:


No sir, like Hacker said, not with gypsum :hahyeahwoo:


--------------------

Yes, you can bump my old threads with a question.
Here is how I get things done.
You should take a look. :hehehe:

Frank's tips and tricks. Updated on 3/21/14
AMU- Get an answer here -AMU

Extras: Filter Print Post Top
Jump to top Pages: 1

Shop: Sporeworks.EU Spores for European Microscopy   MagicBag.co Certified Organic All-In-One Grow Bags   North Spore Bulk Substrate   Original Sensible Seeds Bulk Cannabis Seeds

Mushrooms, Mycology and Psychedelics > Mushroom Cultivation
Threaded Mode Threaded  Previous topic Previous  View all topics Index  Next topic Next 

Similar ThreadsPosterViewsRepliesLast post
* Is coir really necessary? Boffsun 847 12 02/20/05 12:16 PM
by Boffsun
* Amount of Verm TinMan 528 5 02/04/03 05:34 AM
by angryshroom
* Sterilising VS Pasteurising Coir Based Substrates Inoculationn 2,615 9 05/07/21 01:00 PM
by PrimalSoup
* how do i use gypsum? shirley knott 3,299 8 03/14/03 11:37 AM
by shirley knott
* problems finding gypsum disturbed 1,033 3 11/03/04 12:58 PM
by disturbed
* Such a thing as too much gypsum in WBS jars? KingCobWeb 4,888 12 06/29/09 10:37 PM
by Mysterium Fidei
* gypsum??? GagePLoungin 798 3 01/24/03 02:06 AM
by Bilge
* 50/50 Coco Coir versus 50/50 Peat Moss
( 1 2 3 4 5 all )		 Blue Helix 54,742 93 12/04/16 11:30 AM
by mushboy

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, the_chosen_one, LogicaL Chaos, 13shrooms, hamloaf, cronicr, Stipe-n Cap, Pastywhyte, bodhisatta, Tormato, Land Trout, A.k.a
8,617 topic views. 12 members, 1,100 guests and 117 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2026 Mind Media. Some rights reserved.

Generated in 0.029 seconds spending 0.009 seconds on 14 queries.