Magnesium??

Bushbaby11

Well-Known Member
Growing in biobizz all mix soil 3.8L rhizo pots
Plants are 3 weeks in veg, using biobizz fishmix

This has happened to 3/4 plants out of alot
It's not all over, just 1 or 2 lower/older leaves

Is this a magnesium deficiency?
 

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OneMoreRip

Well-Known Member
Sorry I can’t see the picture but if suspect rootzone issue first thing to make sure ph is in optimum range
 

OneMoreRip

Well-Known Member
Growing organically in soil for 1st time ever, from what i understand, soil acts as a buffer so you don't need to ph?
I believe plants care about ph of growing medium, regardless the medium. Your dirt could be heavy in peat making your soil ph in the low 5’s or heavy in what would make it to high (don’t know what that would be).

imo make sure ph is in optimum range for plant species you grow. People do stuff to ph their lawns, so they are green and healthy

not saying it’s for surethe problem, just for sure the first thing to make sure is good because if not, nothing else works right
 

Bushbaby11

Well-Known Member
I believe plants care about ph of growing medium, regardless the medium. Your dirt could be heavy in peat making your soil ph in the low 5’s or heavy in what would make it to high (don’t know what that would be).

imo make sure ph is in optimum range for plant species you grow. People do stuff to ph their lawns, so they are green and healthy

not saying it’s for surethe problem, just for sure the first thing to make sure is good because if not, nothing else works right
Yeah of course, i grow hydroponics usually ph is a must but with soil i was always told you don't need to PH but will check it out
 

hotrodharley

Well-Known Member
Yeah of course, i grow hydroponics usually ph is a must but with soil i was always told you don't need to PH but will check it out
Soil like dirt? Or are you calling a peat mix dirt? If it's actual soil you can forget adjusting pH. Otherwise you need to consider it. Don't mess with a runoff pH because that's useless information.
 

simpleleaf

Well-Known Member
... Don't mess with a runoff pH because that's useless information.
Please provide a citation from a peer-reviewed journal for your assertion.

 

hotrodharley

Well-Known Member
Please provide a citation from a peer-reviewed journal for your assertion.

Why don't you post one that does?
 

hotrodharley

Well-Known Member
I did, and I linked to it.

You're the one who made the claim repeatedly. Please prove it isn't bro baloney.
That's not what a peer reviewed paper is. Did you go to college? At all? That's a paper about treating the runoff for environmental purposes. Ridiculous. Read the damned thing and not just the headline.
 

simpleleaf

Well-Known Member
Growing in biobizz all mix soil 3.8L rhizo pots
Plants are 3 weeks in veg, using biobizz fishmix

This has happened to 3/4 plants out of alot
It's not all over, just 1 or 2 lower/older leaves

Is this a magnesium deficiency?
Because it's on lower leaves, I think it's more likely low nitrogen.
 
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