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Outdoor Greenhouse Grow: New growth clawing and yellowing hardcore

Discussion in 'Growing Marijuana Outdoors' started by ahilliard7314, Jul 10, 2020.

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  1. #1 ahilliard7314, Jul 10, 2020
    I am 3 months into this outdoor grow, they are all bag seed same strain. New growth has almost stopped and what was new growth is clawing and yellowing. Older sun leaves are becoming spotted and burning tips. This has definitely started at the top of the plant and is working its way down. I have 4 plants total, 2 are really bad and 2 are starting to show signs.
    I am using Fox Farm OF and Grow Big nutes every few days. temperatures have been high 90s inside greenhouse, I was concerned with heat burn but the other two plants seem to be doing well until now.
    Ive been researching and researching a nute deficiency but I cant seem to find one that lines up.
    I was leaning towards MG deficiency or Zinc Deficiency.
    I used an Epsom salt mixture about a week ago when I was considering MG def. but with no progress I am looking for another option.
    Bouncing ideas off of people, do you think they could be root bound from the pot being too small? does this look like a plant that looks root bound?
     

    Attached Files:

  2. #2 JMcGD, Jul 10, 2020
    Damn... that looks similar to issues I have been struggling with lately. Yours looks a bit worse than mine though. I chased my tail round and friggin round and what I’ve come up with ( through the help of others) is a couple of culprits.
    A) environmental stress. Maybe too hot up high in the canopy as it’s cooler down in the rootball. Plant can’t keep up with the changes. If it saw a lot of stress as a seedling, this can be readdressed later in life.
    B) rootbound issues. I am notoriously bad at timing my transplants. I’ve found that once the roots start spiraling around the bottom of the pot they have a hard time bouncing back.
    C) water issues. Have you done a water test? This can go without issue for quite a while, but when it reaches critical levels you can be done for. Especially if you are on a well.
    I’m interested in hearing other people’s opinions on this...:huh:
     
  3. #3 BrassNwood, Jul 10, 2020
    [​IMG]

    This might be considered root bound but it was still packing on the growth.
    Square pots promote much better root branching as pictured. Round pots give that coil of Tap root in the bottom of the pot with small branching.
    FFOF and cheap box, blue granular nutes. Hose water at 8.5PH.
    [​IMG]
    Chicken manure and Sulfur dust to flower.
    BNW
     
  4. #4 JMcGD, Jul 10, 2020
    Hmmm... I’ve never considered the square pot vs round, good input right there. Damn nice looking plants as usual BnW!
    The only thing I miss about SoCal is the awesome outdoor potential, man I grew some beasts down there.
     
  5. #5 ahilliard7314, Jul 10, 2020
    I’ve attached a few pictures of pot to plant perspective.... I’m thinking it may be time to transplant and see if that takes me anywhere!

    [​IMG][​IMG]


    Sent from my iPhone using Grasscity Forum
     
  6. #6 sethd513, Jul 10, 2020
    First thing I thought was soil smoked/pot bound. Then water. Then heat.


    Sent from my iPhone using Tapatalk
     

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