Lower leaf deficiency
Master_weedastarted grow question 6y ago
Hello to all padawans and jedis masters
I already have an idea on the matter but I would like confirmation
On my pictures (last day 20) I took the deficiency.
Thank you all for your help and may the strength be with you 💪
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OutForRealanswered grow question 6y ago
I would have said a lack of potassium or magnesium, it seems hard to believe given the soil you're using and the fertilizer you applied recently. As others have said, it might be the pH; yours is between 5.5 and 6.4, so basically the average is 6 and you're watering around 6.3. Knowing that in soil these 2 elements (Mag and K) are better absorbed between 6.5 and 7, you could be hindering their uptake with your pH of 6.3, which could lead to a deficiency of these 2 elements due to the difficulty in absorbing them properly. It makes sense, but I still have some doubts.
JP148answered grow question 6y ago
Don’t write it in stone but I know of four possible causes 1- Needs Cal-Mag. 2- fert. burn 3- brown spot leaf fungus. 4- transplant stress Because it’s only on first set leaves I tend to think it’s transplant stress. I would add Cal Mag as it takes a lot to over do. I’d wait to see if problem spreads to any new upper leaves. If so not transplant stress. Hope this helps but I get the feeling more of test to see if the “force is with us” then a problem you already know the answer to. I probably failed.
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MiPotFarmanswered grow question 6y ago
From what I’m seeing brother is you are in the middle of a phosphorus deficiency!! Mild symptoms! Good luck 🍀👍
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