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Thread: Nitrogen deficiency?

  1. #1

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    Default Nitrogen deficiency?

    I've been growing this plant in soil medium for some time. Letting it dry out and water every 4-5 days. Nutrients every 7-8 days.

    I got a really good visual chart (link from this forum) and Nitrogen and Sulphur deficiencies are almost identical but thought it may have been one of those

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    Soil or hydro or coco:

    Strain:

    Photo or Auto:

    plant age:

    pot size:

    has it been repotted? and when?:

    soil type:

    nutes or additives used and how often for soil:

    Air temps (max min):

    Res temps (max min):

    humidity:

    lighting type and wattage (hps, led, cfl):

    Light schedule:

    ph level:

    EC (hydro and coco only)

    Background EC.

    feed schedule and nutes (for hydro and coco)

    anything else you think may be relevant!
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  5. #3

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    Quote Originally Posted by Herbitual View Post
    Soil or hydro or coco:

    Strain:

    Photo or Auto:

    plant age:

    pot size:

    has it been repotted? and when?:

    soil type:

    nutes or additives used and how often for soil:

    Air temps (max min):

    Res temps (max min):

    humidity:

    lighting type and wattage (hps, led, cfl):

    Light schedule:

    ph level:

    EC (hydro and coco only)

    Background EC.

    feed schedule and nutes (for hydro and coco)

    anything else you think may be relevant!
    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

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  7. #4

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    looks hungry but ain't go a clue on tomato food


    "Patience is bitter, but its fruit is sweet."

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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
    What size pot you in? I think overfed but also a pH lockout somewhere. Watering seems far to little which can effect soil pH if the soil is getting very dry all the time..

    A Lockout must be causing the yellowing as the plant looks dark green and burnt tips so I cant see that it underfed N
    Last edited by Gaz; 30-07-19 at 09:34 PM.

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    I'd say she's definitely hungry.

    Any reason for 16/8 lighting? As a minimum, I'd go 18...or just keep them on.

    For 16 weeks, I'll be honest, you're way behind. You could be 4 weeks into your next from now.

    How much W is the ISH drawing?

    What sized pots? (It doesn't sound like a great deal of water)

    Why is the extraction regime like that?

    So many questions...

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  13. #7

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    Quote Originally Posted by Gaz View Post
    I think overfed
    Lovely difference of opinion, but I think we're both right.

    She's swung from under to over....the top is dark, the lower is yellowing.

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    K
    Quote Originally Posted by e11 View Post
    I've been growing this plant in soil medium for some time. Letting it dry out and water every 4-5 days. Nutrients every 7-8 days.

    I got a really good visual chart (link from this forum) and Nitrogen and Sulphur deficiencies are almost identical but thought it may have been one of those

    Click image for larger version. 

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    Four months plus old? Are you sure on an auto?
    Current Grow (3L coco autos) : Jumper's 2020 shenanigans

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  17. #9

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    Quote Originally Posted by Herbitual View Post
    Lovely difference of opinion, but I think we're both right.

    She's swung from under to over....the top is dark, the lower is yellowing.
    I would side with the experienced head everytime mate and you are most likely correct as is Easy T.

    Just a pH look to the yellowing but Im probably barking herb ...

    In fact we all know I am
    Last edited by Gaz; 30-07-19 at 09:39 PM.

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  19. Default

    I'd agree with both sides here..it has been overfed at one stage and also underfed as Herb observed, so not wrong at all Gaz..

    If you notice the leaf is yellowing but staying green along the vein lines..that's a classic sign of a mag def, are you in a hard or soft water area e11?

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