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Deficiency

KingJayTkstarted grow question 6y ago

Hey everyone, I need help diagnosing this deficiency. I think its P+K deficiency. The lower leaves turning yellow then brown and crispy. The upper leaves edges are turning brown and the tips are curling upwards.

KingJayTk

KingJayTk

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Leaves. Curl up

Leaves. Color · Yellow

Leaves. Color · Dark-brown

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punxneverdeadanswered grow question 6y ago

Hey there. I would put money on it being 3 things. Cal mag. Light stress. Or heat stress. Looks like or was a good grow anyway.

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JuanHaze_Arganswered grow question 6y ago

Hi. I think I have the same problem finishing the 4th week of flowering. I'm a little scared because the burning won't stop. Did you solve this issue? I also think it might be due to a P.K. deficiency, but I'm not sure!

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DoDrugs420answered grow question 6y ago

Excess of Boron. (Maybe) Phosphorous deficiency. Potassium deficiency. Temperature stress, overwatering (Maybe heat with overwatering, or or root zone problems)

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