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Potassium deficiency or????

VanTheMan
VanTheManstarted grow question 1y ago
I fear that i am starting to see the first signs of Potassium deficiency.. some leaf tips show what i see as Potassium deficiency. What do you guys see.? Besides the few tips i think she looks kinda healthy.
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Week 5
Leaves. Curl down
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Grey_Wolf
Grey_Wolfanswered grow question 1y ago
To be certain I would feed her some Calmag and a halfstrength bloom boosting product that has high potassium content the reason for this is she definitely doesn't need nitrogen
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AutoflowersSucK
AutoflowersSucKanswered grow question 1y ago
It's a bit early to say. First pic looks like calcium. Other pic's suggest maybe potassium, or a Boron deficiency. Until it progresses a little more it's hard to pin point. But it's certainly narrowed down to those 3.
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Krisis
Krisisanswered grow question 1y ago
With the rust colored spotting showing in picture 1 I’d say calcium is needed
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