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AK47 Plant has yellow and browned leaf.

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forums; Hello all, Read the nutrient guide at http://www.rollitup.org/marijuana-pl...-toxicity.html and am guessing I have a Nitrogen or Potassium defiency. AK47 feminized ...
  1. 12-20-2011, 01:04 PM #1
    The V Ape
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    Angry AK47 Plant has yellow and browned leaf.

    Hello all,

    Read the nutrient guide at Guide to Nutrient Deficiency or Toxicity and am guessing I have a Nitrogen or Potassium defiency.

    AK47 feminized (5 plants, only my largest plant is showing this)
    27 days since germination and about 20days in 18/6
    Promix BX
    Watered with filtered water when Promix is dry and 10% recommend dose of All-Purpose nutrients (24-8-16)
    Indoor grow tent with 1 90W UFO LED and 2 42W (100W equal) CFLs at 6500k

    This browning an yellowing came out of no where as 3 days ago there were no issues, so I am hoping to nip this in the bud

    Should Increase nutes to 15% or more or give them another dry out period and give a full serving of nutes?

    Any pointers appreciated.

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  2. 12-21-2011, 02:17 PM #2
    The V Ape
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    Hate to bump this but things look far worse today. Will put some more pictures up after work.

    Any pointers or consensus on my thoughts are appreciated.
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  3. 12-21-2011, 03:12 PM #3
    bantos44
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    man I grew this one time and got some excellent results. However I only gave them nutes 1 time before 12/12. What I did get was some yellowing from overwatering and all I did was cut back on water. If its isolated I would just give it a cup of water and monitor it. If it keeps going It could be a nute problem but IDK.

    do u have enough air circulation in there?
    Last edited by bantos44; 12-21-2011 at 03:14 PM.
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  4. 12-21-2011, 03:20 PM #4
    The V Ape
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    Yeah, I have an inline fan that runs for 30mins every hour so I don't think air circulation is an issue.

    Its a hard call because if it needs nutes and i stop them things will get worse. If it has too many nutes and I give it more things will get worse. Might just have to flip a coin and hope for the best.
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  5. 12-21-2011, 03:29 PM #5
    bantos44
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    you can never go wrong with just watering them.

    reason I ask about circulation is because a recent grow was getting curled and yellow leaves due to heat. I had to increase air movement between the canope and lights and this solved that issue.

    if new growth is green as can be then you should b ok. if the yellowing is at the top then u should b a little concerned
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  6. 12-22-2011, 07:13 AM #6
    The V Ape
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    Cool thanks bantos. Maybe will give them a feeding of water for a bit and see if it cures the yellowing. Props.
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