What's this yellow shit ??

idfuckmyplants

Well-Known Member
This is my fast buds blackberry auto @ day 15 ..

She's in bio-bizz all mix soil and has had nothing but rainwater yet ..

Seems to be growing alright just wondered what the yellowing on the leaves was ??

IMG_2170.JPG
IMG_2172.JPG
 

idfuckmyplants

Well-Known Member
Appears to be a slight hint of it on the newest growth too ..

Don't think it's light burn personally as I grow under CFL at a pretty standard distance .

The leaf the opposite side to the one with yellowing is deformed also .. looks like a 3 blade leaf but its actually only 2 as 1 side is joined :s
 

Morth

Well-Known Member
CFL will cause light burn if your misting or spraying the plant with water as the light gets magnified. That's not really in the shape of a water droplet though. Check out this post from another forum great info with pics https://www.icmag.com/ic/showthread.php?t=231387 sadly most of the problems look the same to me lol guess only experience lets you tell the difference. If that's COCO maybe a calcium deficiency?
 

idfuckmyplants

Well-Known Member
It's soil , I'm gonna add a little cal-mag in her next watering with her first bit of grow :)

I don't spray or mist but you are entirely right and could have potentially still got water on her .

The only thing I can think is when topping pot up she got a little dirty , had to blow a bit loose dirt off of her but don't see how that could cause it :S

Thanks for the link , I'll get looking
 

greasemonkeymann

Well-Known Member
It's soil , I'm gonna add a little cal-mag in her next watering with her first bit of grow :)

I don't spray or mist but you are entirely right and could have potentially still got water on her .

The only thing I can think is when topping pot up she got a little dirty , had to blow a bit loose dirt off of her but don't see how that could cause it :S

Thanks for the link , I'll get looking
you are keeping the soil too moist, let it dry out much more before watering, don't go by the media surface, go by an inch under that.
cannabis HATES wet feet.
100% certain it's not a deficiency due to cal or mag, too early for those to manifest.
container is too big for that plant as well, which is contributing to your first problem... too wet of a media.
when you water, just dribble some around the base of the plant rather than soaking the entire container.
after it's established then you can water the entire container, but only after the plant grows more, approx. double the growth you see now.
for now, scrape or simply agitate the surface of the media to allow more water evaporation.
a fan couldn't hurt either.
and make sure you have that plant OFF the floor, you want something under it so it doesn't sit in any drainage at all
 

greasemonkeymann

Well-Known Member
This is my fast buds blackberry auto @ day 15 ..

She's in bio-bizz all mix soil and has had nothing but rainwater yet ..

Seems to be growing alright just wondered what the yellowing on the leaves was ??

View attachment 3884601
View attachment 3884602
oh, and none of that is for the tiny yellowing only on that leaf.
that's just a genetic abnormality seen it probably 50 times at least.
harmless.
but the overall lighter shade of green is something to address, like yesterday
 

GangusKush

Member
oh, and none of that is for the tiny yellowing only on that leaf.
that's just a genetic abnormality seen it probably 50 times at least.
harmless.
but the overall lighter shade of green is something to address, like yesterday
Flip out the lights for maybe 15-20 mins and give her a nice foliage spray, maybe add a pinch of silica as well, make sure the foliage spray is at least 6.8+ to help with calcium uptake. The proplem here is it looks more like a mag problem than a cal problem. Both are very similar and mag requires more of a acidic pH and cal requires more of a base pH, that's why I say spray first then hit it with mag if you don't see it green up in a matter of hours
 

greasemonkeymann

Well-Known Member
Flip out the lights for maybe 15-20 mins and give her a nice foliage spray, maybe add a pinch of silica as well, make sure the foliage spray is at least 6.8+ to help with calcium uptake. The proplem here is it looks more like a mag problem than a cal problem. Both are very similar and mag requires more of a acidic pH and cal requires more of a base pH, that's why I say spray first then hit it with mag if you don't see it green up in a matter of hours
you could do that, but i'm fairly confident it's not a def, too early for those to manifest, and no way the soil is devoid of cal and mag this early.
remember in order for a soil to be depleted it's gotta coincide with growth.
that plant isn't big enough to be deficient of anything yet.
biobizz is fortified, and the amount of soil in that container is WAY far away from being deficient already.
 

Big_Lou

Well-Known Member
you are keeping the soil too moist, let it dry out much more before watering, don't go by the media surface, go by an inch under that.
cannabis HATES wet feet.
100% certain it's not a deficiency due to cal or mag, too early for those to manifest.
container is too big for that plant as well, which is contributing to your first problem... too wet of a media.
when you water, just dribble some around the base of the plant rather than soaking the entire container.
after it's established then you can water the entire container, but only after the plant grows more, approx. double the growth you see now.
for now, scrape or simply agitate the surface of the media to allow more water evaporation.
a fan couldn't hurt either.
and make sure you have that plant OFF the floor, you want something under it so it doesn't sit in any drainage at all
(Scribbles in note pad.)
 

Know One

Well-Known Member
A little more info please? Could you take a picture from a bit farther away that shows your set-up?
You say you use CFL. What size?
What is the N-P-K nutrient values listed on the front of the bag of soil?
What size pot is that?
Did you start in a small pot and transplant up, or start in a fairly large pot?
From what I have read about Bio Biz All Mix, it tends to be low in Mg (magnesium). This is an easy fix with Epsom salts foliar spray.
When you say rain water, do you mean it ran through a rain gutter into a barrel? How was water accumulated? Remember it will pick up anything in the gutter along the way.
Have you checked the PPM's and pH of rain water?
 

GangusKush

Member
you could do that, but i'm fairly confident it's not a def, too early for those to manifest, and no way the soil is devoid of cal and mag this early.
remember in order for a soil to be depleted it's gotta coincide with growth.
that plant isn't big enough to be deficient of anything yet.
biobizz is fortified, and the amount of soil in that container is WAY far away from being deficient already.
Over watering will cause leaves to curl under , not only is it a response to to much nitrogen but it's a key response your plants have when over watered, you have perky leaves that are yellowing which tells me thing, your pH is wayyyy off, if you say there is enough food in the soil the only way your plant would yellow like that is a deficiency! In soil 95% of your nutrition uptake happens in a pH of 6.8 to 6.3
 

greasemonkeymann

Well-Known Member
Over watering will cause leaves to curl under , not only is it a response to to much nitrogen but it's a key response your plants have when over watered, you have perky leaves that are yellowing which tells me thing, your pH is wayyyy off, if you say there is enough food in the soil the only way your plant would yellow like that is a deficiency! In soil 95% of your nutrition uptake happens in a pH of 6.8 to 6.3
over watering doesn't always cause curling under, that's after it's been like that for a while.
ph is off because the soil is too moist.
anaerobic, and acidic.
a soil can be perfect in regards to it's nutrients, and ph, but if it's kept too moist it's not conducive to growth.
turns acidic and anaerobic.
 

greasemonkeymann

Well-Known Member
I'm in Cabazon CA right now and the rain we have had in the last week is ranging from 8.9-9.6 it's fucked
what??!
holy shit
that's insane man, never heard of rain getting even remotely close to that alkaline.
not even close
nearly all the rainwater I've heard or seen tested in waaaay down near 5.8 or so.
man, if I were you?
I bottle that shit up, and sell it to the kooks that think they need alkaline water to make themselves "healthy"
theres a big ass market for that
 
Top