potassium deficiency

  1. T

    Have anybody had this issue before - potassium deficiency, ph issue, excess of nutrients?

    I need help determining this issue. I haven’t seen this before. The leaves have this gloss film on them. I didn’t spray anything on them. I didn’t change the feeding. This is the only plant out of the three that has this. It’s week 4 in flower and I noticed the leaves and it started spreading...
  2. S

    Weird burn but run off and ph is fine. Week 6 Autoflower

    Hey so I started getting this weird burn going over the last 2 weeks. > Initially I thought it was light burn which after turning down the lights to less than half power has been ruled out. > Then thought it was a PH issue so I tested run off PH and nope its perfectly locked in at 6.0 just...
  3. B

    Second grow, same issue

    Hey fellow growers, I'm on my second grow here and I'm facing the same issue as before.. Ghetto setup: - Bagseed - Small DIY growbox with reflective bubble wrap inside - 2 x 23W 6400K CFL's + 1 x 45W 6400K UFO LED - 2 x PC fans (inlet+outlet) - Store bought high-quality universal and organic...
  4. N

    Possible potassium deficiency??

    Hi all, so this girl is 118 days old…. It’s a original cheese from fast seeds. So I’m thinking potassium deficiency? I’m feeding with ro water and using the right amount of calmag so I don’t think it’s to do with calcium plus leaves are dark and shiny. Weird cause the last two weeks I’ve been...
  5. U

    Nute burn and Potassium Deficiency or just nute burn?

    I know I have nute burn on the plant but I'm wondering if it's only a nute burn problem or also a deficiency problem as well? Is this also a potassium deficiency? I am seeing nute burns on the tips but also I am seeing yellowing on the edges of the leaves located at the top of the plant, on the...
  6. B

    Help, leaf burn, don't know the cause

    Hey guys, I've been vegging this bagseed sativa dominant lady for 9 weeks, flipped to flowering about 5 days ago. Micro grow(first) with CFL: Veg: 3 x 23W 6500K = 69W Flowering: 4 x 23W 2700K + 1 x 23W 6500K = 115W LST, topped once + lights close to the plant. She grew short due to the weak...
  7. S

    Heat stress or potassium? Edge burn and slow growth.

    1st grow and its already getting a little complicated lol. Im getting some strange edge burn along the serrated edges on two of the top leaves. purple stems and slight blotchy pigmentation is also going on in the lower older 3 finger leaves (although very small amount and can be somewhat seen...
  8. giantcola

    Best Potassium Source for Foliar Application

    Hey guys, one plant of mine is currently showing potassium deficiency. I am foliar spraying her nearly every day with Neem, Nirvana, Aloe and Seaweed. What could i add to the mix to feed her some potassium? I have a bottle of diluted potassium silicate which provides around 4% potassium. Could...
  9. E

    Potassium deficiency?

    Hey guys, Just need some input on what this may be and what to do to remediate this problem. Im thinking it's a potassium deficiency but would like a second opinion. Appreciate any help given! Autoflower ZKITTLEZ PROMIX MP Dr. Earth dry amendments DE premium gold All purpose fertilizer...
  10. kuruth

    Can't seem to get it right

    New grower. One full harvest under my belt, and a second one soon. Problem with my veg plants that 4x blue cookies from seed 2x4 closet currently in 3 gallon fabric pots Canna Coco+Perlite Canna A+ Canna B+ Cal-mag PH ~5.8 room temp ~24 Celsius/77 Fahrenheit RH ~65 I planted these "Blue...
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