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Weed-noob

Active Member
What’s up with that plant in the upper left corner of the photo? Looks like lots of dead leaves at the bottom maybe? Maybe clean up the dead crap, then wait a week after your flush to see results.....if none, toss them, and start over.

Seems like this issue is at least a few weeks old, I’ve learned Cannabis plants (and their problems) grow really really fast. If you don’t act quick, you lose out on yield and quality in the end. So instead of wasting months and money trying to grow sick plants, try again and do better next time.
Actually the plant in the upper right shows no sign of leaf necrosis. The reason it’s full of dead leaves is because my timer was being faulty... After a while I noticed something was wrong due to the fked up growth and 1 blade leaves lol... Had to reveg it, (it took forever to get back on its feet) that’s why I’m thinking maybe my soil doesn’t have bacteria no more or something. I remember reading somewhere that bacteria in the soil is crucial for fert uptake.
 
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Chunky Stool

Well-Known Member
What are you using to check ph? Meter calibrated?
Looks like copper deficiency caused by low ph. Copper needs at least 6.0
Widow strains are especially susceptible to copper def/ low ph.
That is so weird.
Not saying you're wrong, but that seems odd. :roll:
 

Weed-noob

Active Member
That is so weird.
Not saying you're wrong, but that seems odd. :roll:
I have a northern light same age, in the same tent under the same light, in the same soil and in the same feeding regiment and their striving and looking healthy as fuck. I think that pheno of white widow is broken or something
 

Chunky Stool

Well-Known Member
Actually the plant in the upper right shows no sign of leaf necrosis. The reason it’s full of dead leaves is because my timer was being faulty... After a while I noticed something was wrong due to the fked up growth and 1 blade leaves lol... Had to reveg it, (it took forever to get back on its feet) that’s why I’m thinking maybe my soil doesn’t have bacteria no more or something
Microbial life will diminish when you use synthetic nutes because the plant doesn't have to feed them to get soluble nutrients.
It can be replenished with ACT (aerated compost tea). There are also products on the market that work well, like "Oregonism XL" & photosynthesis plus by microbe life. (Caution: the microbe life product smells like ass. Seriously. It is awful.)
 

ANC

Well-Known Member
I'm starting to lean even more towards iron, due to low pH rather than not being dosed.
 

Possum1

Well-Known Member
That is so weird.
Not saying you're wrong, but that seems odd. :roll:
Sorry, forgot my disclaimer, I'm a total newb and know nothing. I'm using very similar nutes and soil and no deficiencies.
However, I spent 15 whole minutes googling this problem. Of all the pictures I saw, the one I posted matched the most.
He has been dosing cal/mag like crazy. The pic I posted mentioned widow strains specifically. Could his ph meter have been off? I'm less than impressed with my new Jella's meter vs the ph chem drops. What did I say wrong?
 

Possum1

Well-Known Member
Microbial life will diminish when you use synthetic nutes because the plant doesn't have to feed them to get soluble nutrients.
It can be replenished with ACT (aerated compost tea). There are also products on the market that work well, like "Oregonism XL" & photosynthesis plus by microbe life. (Caution: the microbe life product smells like ass. Seriously. It is awful.)
You honestly think deficiency signs like they're showing is due to a lack of microbial life, in promix, with GH nutes, vs a possible ph discrepancy due to an uncalibrated meter? Ok.
 

Chunky Stool

Well-Known Member
You honestly think deficiency signs like they're showing is due to a lack of microbial life, in promix, with GH nutes, vs a possible ph discrepancy due to an uncalibrated meter? Ok.
Did I say that? :dunce:
No, I did not.
I said it was NOT nitrogen or mag deficiency.

OP asked about microbes.
As a side note, you do realize that microbial life does *not* thrive in promix w/GH 3-part, right?
 

Possum1

Well-Known Member
I asked honestly, and not facetiously, if you thought a lack of uptake of GH hydro nutes, in promix, was due to a lack of microbial life, or a pH imbalance?
 

Chunky Stool

Well-Known Member
I asked honestly, and not facetiously, if you thought a lack of uptake of GH hydro nutes, in promix, was due to a lack of microbial life, or a pH imbalance?
I'm not sure. Maybe neither.
It's hard to overwater promix HP, and it's got dolomite as a PH buffer. His PH would have to be WAY off to cause this.
 

thumper60

Well-Known Member
I have a northern light same age, in the same tent under the same light, in the same soil and in the same feeding regiment and their striving and looking healthy as fuck. I think that pheno of white widow is broken or something
no just a mag whore,dump the cal-mag get some Epsom salt
 

thumper60

Well-Known Member
Newb haha, sure bud, how long u been growing for? So what is promix then smart guy? Perlite, peat, and what else??? Oh ya dirt, thats why people call it dirt.
been using soiless promix since mid 80s,how bout u theres a reason they call it soiless:wall::wall::wall: go ahead an dump 6.5 water in it good luck what could go wrong its only dirt lol
 

JimmyTheNewb

Well-Known Member
Im also in promix and growing a white widow.. This plant has been the most wishy washy plant ever. It don't take much to piss her off just like my baby mama lol. I noticed mines stays a little yellowish. Im using advanced nutrients micro grow bloom ph perfect so i dont have to worry about that and its always been spot on.
 

JimmyTheNewb

Well-Known Member
been using soiless promix since mid 80s,how bout u theres a reason they call it soiless:wall::wall::wall: go ahead an dump 6.5 water in it good luck what could go wrong its only dirt lol
The water i put on my promix is 7.2 tap water. I use ph perfect nutes though so maybe thats why mine stays good. I do a feed,feed,water i never really thought about the days i just water you think id be better off to lower my ph on those days?
 
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