N or P deficiency?
SaiMutsustarted grow question 2y ago
Need help to understand if this is P or N deficiency. It's on the lowest fan leaves, one is more pronounced than the other, and it's mostly on one side. Stems and veins look like they're giving hints of P def but from what I searched leaves look like it could be N def.
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Leaves. Color - Dark-purple
Leaves. Color - Dark-brown
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00110001001001111Oanswered grow question 2y ago
Possibly both..
N for sure.
P would have some blueish hues in leaves. copper dead spots but no paling (chlorosis). See the copper/rust but no blue. probably coming in a bit.
The more i look at pic #2 the more i think it is both.
Scrubbyjimbobanswered grow question 2y ago
I'm more inclined to chalk it up to poor lighting. If a leaf uses more energy than it creates(like by being shaded out at the bottom of a thick canopy)a plant will often cannibalize it to provide nutrients for newer/better growth. It's nothing severe regardless or you'd see it in newer growth.
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AutoflowersSucKanswered grow question 2y ago
looks like nitrogen to me. Whole plant looks pale and nitrogen will be pulled from lower leaves to be used at the tops.
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