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Whats causing this leaf bleaching?

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    Whats causing this leaf bleaching?

    week 8 autoflower in organic soil, hlg 135.

    #2
    Just have a few questions to help narrow it down:
    - What do you have in your organic soil?
    - Did you topdress the soil to keep nutrients available?
    - water source? Tap, RO, or well water?

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      #3
      I do believe you have a pH issue issue here and some nutes are locked out. See Nebula's plant diagnosis pics Brown spots on middle or lower leaves even though it looks like yours are more near the top. Double check your pH with at least 2 methods and adjust. This could also be a sign of root rot or other root issue. Read about root problems.
      Started 9/9/21: 2nd grow: Hawaii Sativa MAUI auto x 3
      Finished Grow: Critical Mass photo - fem x 3 plus 1 clone same
      Medium: FF Coco Loco plus 30% Perlite in 5 gal cloth bags
      Space: 30x48x62 DIY cabinet lined w/space blankets
      Lighting: Bloomspect SS1000 Quantum board x 3 - 300 watts actual draw total
      Soil Supplements: Worm Castings, Guano, Crab Shell, Oyster Shell, Neem and Karanja Meal, Volcanic Basalt Dust (for minerals), Recharge root micros, ACV for organic pH down as my filtered tap water runs over 7.5 pH
      Ventilation: Vipospar 4" Exhaust Fan w/RH controller, 12" Carbon Scrubber
      Reptile Humidifier/Fogger w/same RH controller, bottom intake fan, 6" heater
      Cabinet on screen porch. N AZ @ 4000 ft.
      Old hippies never go away, they just
      Grow Their Own

      My salute to all who have served
      Semper Fidelis!

      Comment


        #4
        Hi, I was instructed by an experienced grower to flush 3x volume with recharge and then 1x with bud bread (my food). I did this and reduced the lights by about 30%. Looks like it was a nutrient ratio off locking me out.

        Comment


          #5
          flushing the plant with plain PH'd water works wonders...forget the additives. Make sure you check the PH levels as that is really more important than flushing and adding nutrients. Reducing the light should realistically only be required when there is light damage. Remember light is food...nutrients are vitamins...if you have no (or less) food, vitamins are pointless.
          I hope there is an afterlife...there are a lot of friends and family I'd like to see again, one day.

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            #6
            I would use gypsum. 2 tablespoons or up to 1/4 cup I’m sure would take care of that issue. Also raising the lights can help light is good but too much is not good either. I’m learning that with my new led. Just when I think it’s far enough I have to raise it more.

            Comment


              #7
              Thank you everybody for their input, I ended up flushing with 3x volume recharged H2O pH corrected. Then I fed it 50% of a bud bread feeding in 1X of volume. Dropped light by 20 to 30%.

              Comment

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