Gypsum anyone?

GreenSanta

GreenSanta

Well-Known Member
I have yet to read the full 2 pages lol, but worth noting that Michael Phillips in one of his youtube videos I remember him talking about drywall being a good soil amendments, the fire retardant stuff is in such low concentration or inert in the soil that it is not a problem but he did say do not use cheap dry wall from china make sure it is america drywall. Now that was for fruit trees, but I wouldnt worry too much about it. I will watch the vids you guys posted and also read this thread but I really never had to worry about PH, I am also a firm believer that most growers try to get it perfect when in fact there is no perfect, well, the plants are, biology is, simply use lots of mulch and a compost made with diversified inputs and your soil should be rocking.
 
ttystikk

ttystikk

Well-Known Member
greasemonkeymann said:
don't sweat it my man, if anyone would have had that issue, it would have been me, I LOVE sulfur, neem seed meal, steer manure, etc
I use the bejesus out of it
sulfur is one of the commonly overlooked things in a grow, and one of my (not-so) "secret weapons"
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I'm trialing potassium sulfate in my late bloom mix, specifically for additional sulfur. I can't bump my Epsom salt any more because of magnesium interaction issues.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
ttystikk said:
I'm trialing potassium sulfate in my late bloom mix, specifically for additional sulfur. I can't bump my Epsom salt any more because of magnesium interaction issues.
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you use neem seed meal? It may be my favporite nutrient, with maybe comfrey as a close second
gooood shit
I use langbeinite, neem seed, steer manure, and of course my compost, which if what I've read is correct, the microbes apparently have a fantastic ability to release the sulfur from composted inputs
cool stuff
 
ttystikk

ttystikk

Well-Known Member
greasemonkeymann said:
you use neem seed meal? It may be my favporite nutrient, with maybe comfrey as a close second
gooood shit
I use langbeinite, neem seed, steer manure, and of course my compost, which if what I've read is correct, the microbes apparently have a fantastic ability to release the sulfur from composted inputs
cool stuff
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You're waaaaay ahead of me in the organics department! I'm running a soilless mix called Tupur.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
ttystikk said:
You're waaaaay ahead of me in the organics department! I'm running a soilless mix called Tupur.
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oh hell yea, tupur is good shit
buuuut ya REALLY need a good amount of calcium and magnesium, in fact...
comfrey would be the pimp-daddy input in my opinion, for tupur
keep in mind I have zero experience growing with tupur, so I only know what I've read
and don't sweat it, you are WAY ahead of me in the yields and trimming departments
like lightyears..
 
ttystikk

ttystikk

Well-Known Member
greasemonkeymann said:
oh hell yea, tupur is good shit
buuuut ya REALLY need a good amount of calcium and magnesium, in fact...
comfrey would be the pimp-daddy input in my opinion, for tupur
keep in mind I have zero experience growing with tupur, so I only know what I've read
and don't sweat it, you are WAY ahead of me in the yields and trimming departments
like lightyears..
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Well you know I'm taking notes, right? I'm fully aware that just because it isn't a base nute in my hydroponic mix doesn't mean it isn't going to help grow bigger, better, healthier, more potent and tastier plants.
 
greasemonkeymann

greasemonkeymann

Well-Known Member
ttystikk said:
Well you know I'm taking notes, right? I'm fully aware that just because it isn't a base nute in my hydroponic mix doesn't mean it isn't going to help grow bigger, better, healthier, more potent and tastier plants.
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ironically enough, some places consider sulfur a macro, in fact I think it was autralia that considers it a macro element?
I can't remember..
but it is an essential element, for sure
but to them it's all about the NPKS
sorta cool
 
greasemonkeymann

greasemonkeymann

Well-Known Member
ttystikk said:
Interesting that it's hard to OD on sulfur.
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yea totally, I wonder what you'd have to do?
I've used mixes VERY heavy with langbeinite (like 20 something % sulfur) and didn't have any issues, but I think that's all slooowly released, so that 20-something percent may be fooling me
 
NaturalFarmer

NaturalFarmer

Well-Known Member
Another well known Chap on another site that I go to told me he has seen N become immobilized with overusing Sulfur causing chlorosis. Never gone over 5 cups of gypsum per 30 gallons of soil until now. I used 4 pounds in a 30 gallon so time will tell
 
NaturalFarmer

NaturalFarmer

Well-Known Member
I have recently been advised though that top dressing gypsum is the most effective and efficient way instead of mixing together like I just did. but I think I may top dress the girls I have in flower with a bit more.
 
NaturalFarmer

NaturalFarmer

Well-Known Member
ttystikk said:
Because I run hydroponic nutrients, which must remain fully water soluble.

Gypsum is 97% water INsoluble, so it has no place in hydroponics.
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Interesting. So does that mean if I put it in a gallon only 3% would be dissolved in that solution, but what about the next gallon? Does it still give up 3%? Excuse my ignorance on hydro. I was thinking you used drips.
 
ttystikk

ttystikk

Well-Known Member
NaturalFarmer said:
Interesting. So does that mean if I put it in a gallon only 3% would be dissolved in that solution, but what about the next gallon? Does it still give up 3%? Excuse my ignorance on hydro. I was thinking you used drips.
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All I can tell you that if you toss Epsom salt into your res with calcium nitrate without making sure both are fully dissolved, you'll get a layer of tan sandy gunk at the bottom of your res.
 
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