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Thread: Is this N toxicity?

  1. #1

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    Default Answered: Is this N toxicity?

    I grow Blackberries and the leaves are very dark, but I believe one of the girls is sick with high Nitrogen levels

    They all get fed x4 every day with a drip system, in coco and perlite mix.

    50% RO water \ 50% tap
    Calmag Xtra 1.5ml per liter
    Canna Coco A+B 1ml per liter
    Big Bud 1.5ml per liter

    PH 5.8
    EC 1.4
    Runoff 1.4 \ 1.5

    Am I right here guys?




    Its early-mid flower for her.. shes on the back left side of the tent.

    Last edited by Shreder; 24-09-19 at 12:40 AM.

  2. "I'd say yes, def looks like she's had too much nitrogen going by the colour and slight clawing developing.

    She hasn't burnt so just dial back on the N mate "


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  4. Default

    You'll have to share some pics Shreder, quality as possible with lights off

    Also, explain a little further how one of them is sick.

    Edit : Boom you got the pics up now

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  6. Default

    I'd say yes, def looks like she's had too much nitrogen going by the colour and slight clawing developing.

    She hasn't burnt so just dial back on the N mate

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  8. #4

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    Default

    Quote Originally Posted by IceCalibur View Post
    I'd say yes, def looks like she's had too much nitrogen going by the colour and slight clawing developing.

    She hasn't burnt so just dial back on the N mate
    Yea I had to edit from my phone to get the pics mate tnx for the quick reply so they all get fed the same from the same res.. and the phenos on the right actually want more N by their color.. ugh they started behaving completely different a week ago,

    Theyre autos remember.. lefties are way faster phenos.. I bet they have 4 weeks to go or so, so that means in 2 weeks I have to change big bud with overdrive for them... and keep it for the others.. the misery in growing autos...

    So whatcha think should I drop AB to 0.75? maybe drop calmag as well to 1ml?

    I really dont wana get another res+pump+hoses

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  10. Default

    Quote Originally Posted by Shreder View Post
    Yea I had to edit from my phone to get the pics mate tnx for the quick reply so they all get fed the same from the same res.. and the phenos on the right actually want more N by their color.. ugh they started behaving completely different a week ago,

    Theyre autos remember.. lefties are way faster phenos.. I bet they have 4 weeks to go or so, so that means in 2 weeks I have to change big bud with overdrive for them... and keep it for the others.. the misery in growing autos...

    So whatcha think should I drop AB to 0.75? maybe drop calmag as well to 1ml?

    I really dont wana get another res+pump+hoses
    You'll have to wait for some Coco experts mate, which we have quite a few of here! ..I grow in soil, they will help no worries

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  12. #6

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    Default

    Yeah +1 on over fed but also not a coco grower mate

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    Quote Originally Posted by Gaz View Post
    Yeah +1 on over fed but also not a coco grower mate
    Yes, ok. so i just went into the groom and i saw more signs of n toxicity on her.. rest are uneffected but last grow i lost for n tox which now i know cuz it looks the same! and i dropped dosage by half.. next run i wont be using Canna Coco thats for sure!

    anyway im flushing them all now just to match the new main res ec @ 0.9. i cant see another grow go for this crap... gonna run that for 48-72 hours then make a new one with half the dose of canna ab.. just 0.5 ml then..

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    Default

    Ice definitely nailed it there mate. Some plants require more of less of a feed depending on strain. I think you're doing the right thing by flushing, bring your ec down a tad and see how they go from there mate.

    You'll also want to reduce the nitrogen as you're in flower, slowly reduce it over the next week, I think you've managed to catch this early so there's a better chance of recovery.

    Other than that, keep on doing what you're doing, plants looks lovely

    Sent from my SM-N950F using Tapatalk

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    Default

    Quote Originally Posted by Shreder View Post
    I grow Blackberries and the leaves are very dark, but I believe one of the girls is sick with high Nitrogen levels

    They all get fed x4 every day with a drip system, in coco and perlite mix.

    50% RO water \ 50% tap
    Calmag Xtra 1.5ml per liter
    Canna Coco A+B 1ml per liter
    Big Bud 1.5ml per liter

    PH 5.8
    EC 1.4
    Runoff 1.4 \ 1.5

    Am I right here guys?




    Its early-mid flower for her.. shes on the back left side of the tent.

    The girls on the left do look like they are suffering to various degrees.

    Flush with ph 5.8 water 3 x pot volume to remove any salt build up.

    Then drop your EC by 0.4 and go from there. Easy to fix a hungry girl.

    Ideally I would reduce N and up PK to get to about 0.65Ec above base.
    Current Grow (3L coco autos) : Jumper's 2020 shenanigans

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  20. #10

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    Default

    I think yes. You have to less water for your mj.

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