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Nitrogen Toxicity?
Findtheloraxstarted grow question 2 years ago
Nitrogen toxicity? What does this look like to you? I gave a full set of nutes 3 days ago and it looks like the spots/yellowing are getting worse. I watered today with plain ro water ph 6.8 until runoff and tested it, ppm was over 900 ph was 6.2.
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Leaves. Curl down
Leaves. Color - Yellow
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Lisaleezaanswered grow question 2 years ago
Given where the plant is in flowering, I would say that this looks pretty normal and my plants certainly have a few leaves that look like this. If it were a N problem I would expect more signs of it on the other leaves, which look OK to me. The yellowing leaves will not recover and will only get browner then fall off. I remove them to let light through. At this stage, the plant is not going to miss them. Good looking plant and happy harvesting!
Findtheloraxanswered grow question 2 years ago
They are autoflowers in fox farm bushmaster soil. I fed them 3 days ago with 6.3 ph water, 5ml/g calmag plus, 5ml/g fish shit, 4ml/g hyshield, cutting edge nutrients 8ml/g micro, 20ml/g bloom
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m0useanswered grow question 2 years ago
the spotting looks like it may want some extra calcium but no idea of your medium composition. or if your giving CalMg
Also don't know what your feeding them with. If the runoff is 900ppm and no feed was in the water that to me says it was a salt buildup causing lock out. Would also explain the drop in PH on the way out.
If its soilless your PH of 6.2 is good. if its soil its to low. if its an auto 900PPM is a bit high.
I don't see nitrogen toxicity, that looks like dark green shiny leaves that tend to bend downward at the pinnacles and can be more brittle.
Best Of Luck
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