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What deficiency is this?

Discussion in 'Sick Plants and Problems' started by Elf_7, Nov 18, 2022.

  1. #1 Elf_7, Nov 18, 2022
    Last edited: Nov 18, 2022
    Looks like light stress but I raised my light and it is still happening. 315W CMH, temps 20-22Cº (winter, can'tdo better but should be enough), PH 6.2-6.8, feeding as biobizz chart says, light is about at 60 cm distance, bio bizz light mix soil, humidity 60%. Plants are 1 month and a half old, since they were in veg stage I never fed any potassium, so I guess it is a potassium deficiency? Or could it be magnesium? Any input appreciated.
     

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  2. #2 trojangrower, Nov 18, 2022
    imo K def
     
    • Agree Agree x 3
    • Like Like x 1
  3. #3 blueicegrows, Nov 18, 2022
    Potassium fo sho
     
    • Like Like x 1
  4. #4 Pistils, Nov 18, 2022
    Yup. Knew that the second I saw the pic lol.
     
    • Like Like x 1
  5. #5 Nokie112, Nov 18, 2022
    Last edited: Nov 21, 2022
    Sorry I was having trouble posting the other day.
    Hope this can help.
    4C1164DC-F37E-4FB6-A127-CA0DA83D62C6.jpeg
     
  6. #6 FrostAie, Nov 19, 2022
    i can see the potassium deficiency and some yellowing on new growth over watering or possibly a little too high pH
     
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