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Why are there soon many brown spots all of a sudden in WK 7?

ElevatedThinking
ElevatedThinkingstarted grow question 4 years ago
I'm entering Wk 7 and the same lady is hurting again. She's been feeding heavy for last few weeks and doing great. So, I gave a light water/microbes dose w/can and Epson. Now I think its potassium or something else entirely... Brown spotting, yellow, crispy? Thoughts?
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Week 7
Leaves. Edges burnt
Leaves. Color - Dark-brown
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Waters
Watersanswered grow question 4 years ago
You may have overfed her, causing the dry brown spots and burnt tips I see, this could have then caused nute lockout. Flush the medium and apply a foliar spray until she’s ready to be watered and fed again.
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OutForReal
OutForRealanswered grow question 4 years ago
Looks like a calcium deficiency to me , in fact if you type "cannabis calcium deficiency" on google the 1st pictures will all looks like your leaves with the brown spots. Maybe the flush you did to correct the ph have washed away the calcium or maybe the ph fluctuation you just corrected have cause a lockout
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Fruitgrower
Fruitgroweranswered grow question 4 years ago
The purple on your leaves is most likely genetic although the strain you're growing is not meant to be purple some times it can happen especially if the temps are low. The spring on the leaves is most likely a calcium /magnesium deficiency can easily be solved by adding cal mag to the feed (this is quite common) 🌱👍
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ZuriEn
ZuriEn
Nitrogen overdose?We have 2-3 weeks may be, or less. Its the problem?
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Leaves. Edges burnt
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