Foglie bruciate.
Jeremi420started grow question 6y ago
Hey guys! Hope everything's going well. I have some burns on the leaves of just one plant, I gave it bio grow and top max biobizz. Humidity is at 50% and temperature is 27/30 °C unfortunately. I think it might be due to the lights being too close, but I wanted your opinion. Thanks a lot!
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Bloombusteranswered grow question 6y ago
Hey there, bro! 👋 Judging by the photo, you have an excess of nitrogen, reduce the "grow" supplement by three times. Because of the nitrogen excess (bright green color of the adult leaves with a glossy shine), you have developed a phosphorus deficiency (spots on the edges of the leaves). Lower the nitrogen, bro! Phosphorus is hard for the plant to access because of this. Good luck, bro! 👌😇👍
NobodysBudsanswered grow question 6y ago
heh, well, in your case not the cotyledons, but the lower leaves.. the moment thoe show a N-def, go ahead and start.
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NobodysBudsanswered grow question 6y ago
I don't think that's light burn. Never how it has progressed the 2 or 3 times i've seen it and once in last month and a half with new lights torching a younger rooted clone.
That's likely nute burn than anything else.
is the under side of the leaf soft like suede? or leathery? glossy? any of these coniciding points toward toxicity of some sort. It's early, so dial back slightly and it likely fixes itself in time, or give an extra water-only irrigation here and there.
I see you just started feeding this week? You soil may be hot.. may not need it yet. Wait for cotyledons to fade and then start 1/4 str every third watering and slowly build up unless plant dictates otherwise.
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Rap_a_capanswered grow question 6y ago
Hi, it seems to be an initial light burn. However they look healthy and very dark green.
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