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Thread: Nitrogen deficiency?

  1. #11

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    Hi. Id say to up your watering in both amount and frequency at this stage by maybe 25% at least. If your leaving them 5 days in between watering I'd want to be really soaking them so they run off before then letting them dry right out. check your run off and aim for the Ph to maybe be a tad higher, if its a lockout that's the first thing you want to be sure of . They look like they are hungry for some nitrogen your right , towards the middle/later stages of veg you should be increasing your N levels and cannabis isn't a tomato it's gonna want more N than that , although tommy ferts are actually a good additive in my experience . I'd be feeding 2/3 times a week at 4months into veg At least up your nutes a bit and inspect results. Also get right down on top of them after watering till run off and have a good look for any little critters that might be pouring out with it. similarly have a good luck at the base of your stem and under side of your leaves. If youve got something living in there that could be effecting your plants uptake also. If your unsure about whats happening in your root zone and if they have an uptake issue. Add a nitrogen feed to a PH'd foliar application and spray at lights out . If they respond well to that you know that it's gonna be something amiss in the roots. None of this gospel as i'm not a vicar , just what i'd be looking at in your shoes. Hope they pick up and gain a bit of vigor , good luck.

    CS

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  3. #12

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    Quote Originally Posted by Gaz View Post

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  5. #13

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    Just food for thought but hear me out..
    .

    pH for soil. Is 6.2 to 6.8 right but we all know it will buffer it. Well hes been putting in pH 6 and if the super dry soil buffers that down even slightly then phosphorous, Magnesium amd calcium all gonna get locked out.

    EDIT....

    Just seen Ice has said Mg def signs so that fits

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    Quote Originally Posted by Gaz View Post
    Just food for thought but hear me out..
    .

    pH for soil. Is 6.2 to 6.8 right but we all know it will buffer it. Well hes been putting in pH 6 and if the super dry soil buffers that down even slightly then phosphorous, Magnesium amd calcium all gonna get locked out.
    Sounds very plausible Gaz!

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  9. #15

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    Quote Originally Posted by IceCalibur View Post
    Sounds very plausible Gaz!
    Id be pHing my water/feeds up to 6.8 for a week or two and see of she improves if it were me and increase the amount of water per feed to stop her getting so dry between waterings.

    JMO

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  11. Default

    Quote Originally Posted by Gaz View Post
    Id be pHing my water/feeds up to 6.8 for a week or two and see of she improves if it were me and increase the amount of water per feed to stop her getting so dry between waterings.

    JMO
    I agree Gaz, I think you've hit the nail on the head here..best not to add anything (or just make very weak strength feeds) whilst adjusting the PH e11 as it could burn the hell out of them as the nutrients suddenly become available to her again from the soil.

    Worth a try at least before adding anything.

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  13. #17

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    Quote Originally Posted by IceCalibur View Post
    I agree Gaz, I think you've hit the nail on the head here..best not to add anything (or just make very weak strength feeds) whilst adjusting the PH e11 as it could burn the hell out of them as the nutrients suddenly become available to her again from the soil.

    Worth a try at least before adding anything.
    No offence OP, I would also be germing new seeds!

    You have now found the right place and will learn quick!

    I am sure you can get this girl over the line! Smoke is a smoke!
    Current Grow (3L coco autos) : Jumper's 2020 shenanigans

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  15. #18

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    The problem is that I have a few seedlings etc in here as well so have a shut off period although I've kept this to 4 hours of darkness.

    This is the current outlook

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  17. #19

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    Doesn't look too bad from above, but a bit shabby on the side view;

    Click image for larger version. 

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    Will take the advice and start a new grow now. I do have a backup that should be ready in the next 2 weeks. But with this experience, I would probably be selecting the coco for a growing medium as that hasn't enocuntered any major issues. Great wealth of guidance on the forums

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  19. #20

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    Quote Originally Posted by e11 View Post
    It's an Auto
    I'd say about 4+ months
    Never been repotted
    Air temp - 24 - 30 degrees C
    Humidity - 50 - 70%
    LED board (invisible sun ISH150)
    16 hour's on, 8 hours off
    ph level at 6
    I am using a mixture of BioBizz Bloom, and a tomato fertiliser once every 7 - 8 days
    Water every 4 - 5 days (500ml - 1 litre)

    I've got air inlet, flow, extraction come on for 2 hours every 4 hours

    First off Bio-Bizz is organic your tomato feed will most likely be chem based...Chem & organic nutes mixed together can bind at a molecular level preventing transportation...Another point to take into consideration is the bloom component of Bio-Bizz is meant to be used in conjunction with the grow component, the grow contains mostly nitrogen and the micro elements and the bloom is mainly the phosphorus and potassium...Also your extraction needs to be on constantly to ensure the plant has enough oxygen exchange....


    Regards BL

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