Yellowing from top down?

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mbram619

Active Member
Semi new to growing, I grow in my own version of supersoil.
1/3 peat, 1/3, compost/worm castings, 1/3 perlite
Amended with:
Kelp meal
Neem seed meal
Crab meal
Gypsum
Malted barley powder
Azomite
Biochar

Currently running 3 plants in a 4x4 (was running 4 but one turned out to be a male)
All of my plants look fine except for 1 of em. It's starting to yellow from top down it looks like? With some leaves having white or yellow fading in between veins...

What could be lacking in that pot? They all get the same feedings which consists of mainly RO water, occasional cal mag and occasional topdressing and foliar. Yellowing started about 3 weeks ago and I just flipped the lights to 12/12.
 

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Renfro

Renfro

Well-Known Member
Some calmag products have a little chelated iron to help with RO water. Check your bottle. I know calimagic does. You probably need to use that every watering with the RO.
 
M

mbram619

Active Member
I use the cal mag plus from botanicare. I guess I will start using every feeding. my first 2 grows I didnt use cal mag and everything seemed fine but this time around that's the only plant looking a little questionable.
 
Rainbow Warrior

Rainbow Warrior

Well-Known Member
Renfro said:
Some calmag products have a little chelated iron to help with RO water. Check your bottle. I know calimagic does. You probably need to use that every watering with the RO.
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Got a similar problem with one of my girls ( tried nettle tea without success).
Anyhow, got some cal mag with iron. Do u generally use it every watering?
 
M

mbram619

Active Member
Rainbow Warrior said:
Got a similar problem with one of my girls ( tried nettle tea without success).
Anyhow, got some cal mag with iron. Do u generally use it every watering?
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Yea I usually use cal mag if I'm not topdressing or using a tea. So basically anytime I'm giving plain RO water. I usually topdress with kelp meal (contains iron), malted barley powder and compost. However I do know that topdressing takes longer to breakdown and release nutrients however it's only one of the plants that's really yellow/green. I'm guessing it's a really heavy feeder and needs extra nutrients but I figured with cal mag and kelp meal both containing .1% iron that should be sufficient?
 
M

mbram619

Active Member
Also just a little update incase it helps identify anything. Since I originally took the picture to make this post it's been like 5 days and I have top dressed with Terp Tea Bloom from Aurora innovations and also watered with cal mag. But the yellowing seems to be the same or worse even? Added some pics and also the ingredients in the terp tea so if you're unfamiliar.
 

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Cannaprentice

Cannaprentice

Active Member
mbram619 said:
Also just a little update incase it helps identify anything. Since I originally took the picture to make this post it's been like 5 days and I have top dressed with Terp Tea Bloom from Aurora innovations and also watered with cal mag. But the yellowing seems to be the same or worse even? Added some pics and also the ingredients in the terp tea so if you're unfamiliar.
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It might be an iron deficiency, but it's not bad at all.
Usually, It's normal for the new growth to be lighter colored, it just means it's growing real fast.
you can use something that contains both nitrogen and iron like "flora micro"

But I'm pretty sure those leaves will get darker as they grow bigger.
I know for a fact it's not zinc though, Zn deficiency have a stripey look like Mg deficiencies.
I'm not even sure about an eventual iron deficiency as it tends to look waay more yellow and contrasted than what your plants are showing.
just like this:
iron-deficiency-cannabis.jpg

But it's better safe than sorry!
Just don't go overboard and risk nutrients toxicity
 
xtsho

xtsho

Well-Known Member
mbram619 said:
Cooked for about 6-7 weeks. Wanted to go longer but the plants were ready for a transplant from the solo cups.
Click to expand...

Reason I asked is because I recently tried my hand at super soil and failed miserably. Bought a bunch of azomite, kelp meal, alfalfa meal, crab meal, guano, rock phosphate, ewc, etc... I mixed everything up but didn't let it cook. Worst grow I've had in years. I'm back to growing in coco for now.

Something is out of balance with that mix you're using. I wish I could tell you what but I can't. Hopefully you get things resolved and your plants do great. Maybe someone with experience growing in organic supersoil will chime in with some advice.
 
F

funnyherbfarmer

New Member
^agree^ just had the exact same issue with my new girls. I fixed it by flushing the system using ph'd water and give it some nutes that have calcium in them
 
Cx2H

Cx2H

Well-Known Member
mbram619 said:
Semi new to growing, I grow in my own version of supersoil.
1/3 peat, 1/3, compost/worm castings, 1/3 perlite
Amended with:
Kelp meal
Neem seed meal
Crab meal
Gypsum
Malted barley powder
Azomite
Biochar

Currently running 3 plants in a 4x4 (was running 4 but one turned out to be a male)
All of my plants look fine except for 1 of em. It's starting to yellow from top down it looks like? With some leaves having white or yellow fading in between veins...

What could be lacking in that pot? They all get the same feedings which consists of mainly RO water, occasional cal mag and occasional topdressing and foliar. Yellowing started about 3 weeks ago and I just flipped the lights to 12/12.
Click to expand...
Did you add lime?
What ratios of amendments did you add?
How much soil did you make?
How big are the pots and how long they been in the pots?

Iron is one of the issues. If my lawn looked like that I'd dump iron on it and 3 days later, dark green.

Thanks
 
M

mbram619

Active Member
Cx2H said:
Did you add lime?
What ratios of amendments did you add?
How much soil did you make?
How big are the pots and how long they been in the pots?

Iron is one of the issues. If my lawn looked like that I'd dump iron on it and 3 days later, dark green.

Thanks
Click to expand...

Made about 3 cubic feet worth of soil
Amended at 2 cups per cubic foot for most amendments except the biochar(6 cups per)
All pots are 7 gal.
I have noticed that both of the Garlic Juice strains I have look more yellow than the Wounded Warrior Breath however only one of the GJ looks really yellow and sick. The other one only light green right in the middle of new growth.

I'm starting to think maybe it's a P lockout due to ph however I am growing in living soil so I thought it fixed itself.
 
J.James

J.James

Well-Known Member
For micronutrient related issues in a living soil, I would use BIOAG TM7. You can get a pack on Amazon for under $15 and it makes it easy to treat your plants without introducing increased levels of synthetic fertilizer. Use at a rate of 0.75-1.25g/gal of water - https://www.amazon.com/BioAg-TM-7-100-24-Cs/dp/B00CJJ0NIY/ref=sxbs_sxwds-stvp?keywords=BIOAG+TM7&pd_rd_i=B00CJJ0NIY&pd_rd_r=87ad0f70-52e2-4072-8701-77ac49d6a2bf&pd_rd_w=xCsUD&pd_rd_wg=v9KuD&pf_rd_p=a6d018ad-f20b-46c9-8920-433972c7d9b7&pf_rd_r=49G9ZE38DJ0KTMH00SS6&qid=1564868876&s=gateway

Where did you get your biochar and was it charged? If yes, with what?
 
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M

mbram619

Active Member
J.James said:
For micronutrient related issues in a living soil, I would use BIOAG TM7. You can get a pack on Amazon for under $15 and it makes it easy to treat your plants without introducing increased levels of synthetic fertilizer. Use at a rate of 0.75-1.25g/gal of water - https://www.amazon.com/BioAg-TM-7-100-24-Cs/dp/B00CJJ0NIY/ref=sxbs_sxwds-stvp?keywords=BIOAG+TM7&pd_rd_i=B00CJJ0NIY&pd_rd_r=87ad0f70-52e2-4072-8701-77ac49d6a2bf&pd_rd_w=xCsUD&pd_rd_wg=v9KuD&pf_rd_p=a6d018ad-f20b-46c9-8920-433972c7d9b7&pf_rd_r=49G9ZE38DJ0KTMH00SS6&qid=1564868876&s=gateway

Where did you get your biochar and was it charged? If yes, with what?
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Ooo I had read about bioag tm7 somewhere else and forgot about it, thank you! I'm going to try that. Dont remember where I bought the biochar and I dont believe it was charged?
 
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