mg/sulfur ?

Discussion in 'Sick Plants and Problems' started by Don pinky, Sep 13, 2009.

  1. day time temp - 75 f
    night 65 f

    Sativa blue dream
    1 1/2 months old from clone

    1. She started showing very light green new growth starting from the base of the steam progressing to the tips.

    2. There were also a few rust colored spots on the lower fan leafs - none on the new growth. - this lead me to believe it was a mg deficiency.

    3. The outer edges around the newer leafs are a darker green , but most of the leaf is a light yellow/green color, a lot of discoloring is going on.

    Picture 2 is what i'm worried seemed like a mg deficiency but even after a cal/mg/iron supplement she seems not not be getting better.

    I dont think she has been overfed but could this be because of a lockout? soil tester read around 6.5 but it is a piece of crap.

    i dont want this to progress much longer any help would be greatly appreciated!!
  2. Deficiencies of the major elements, (N,P, and K) will start at the bottom of the plant and work upwards. Micro-element deficiencies usually show at the area of new growth/shoots. I would flush the plant with clean water, let it dry out for a couple of days, and start adding nutes back at 1/3 or 1/2 strength. You should see improvement within a week or so. And be careful about over-watering. Make sure the soil is dry down about 2" inside the pot before watering.
  3. #3 Don pinky, Sep 15, 2009
    Last edited by a moderator: Sep 15, 2009
    I'm aware of the immobile/mobile nutrients and what growth area it effects.
    I did flush about a week ago and no signs of it getting better.
    I'm just stummped because i cant find any pics/ anywhere where people have this problem..Thats why im thinking a nutrient burn, but im really not sure

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