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Deficiencey

Budmarley2221
Budmarley2221started grow question 4 years ago
Can anyone tell me what is cauing this i thought a calcium deficiency ?
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Week 4
Leaves. Color - Dark-brown
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Stonerd
Stonerdanswered grow question 4 years ago
It's quite hard to determine the problem under that light, try under normal lighting so we can see the coloration of the leaf itself. If the damage is on leaves at the center and top of the plant then this is a Calcium (Ca) deficiency! If the damage is more severe at the bottom and has tip and margin chlorosis (burns) then it's a Potassium (K) deficiency! In any way I'd suggest first checking pH levels of the irrigation solution and runoff(ideally 5.5-6.5) then increase the Calcium and Potassium Dosage in your fertilizers by about 30-50% (if calcium wasn't added then it's time to add with 1/4-1/2 of the recommended dosage). Hope this helps! Good luck and happy growing :)
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CachimboDaPaz
CachimboDaPazanswered grow question 4 years ago
i think it is potassium deficiency my friend. have a look: https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency hope i helped you
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Roberts
Robertsanswered grow question 4 years ago
Check your soil ph on run off, if it is still in range then the plant might be calling for more cal mag. If you are using coco coir in mix then it is for sure. Your diaries are not filled out fully on nutrition. Makes it hard to see what exactly you are doing week to week. Part of the diary is to track information for yourself and others to help when you have issues. Hope that helps. Happy growing
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