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Early N deficiency correction

lowrydr
lowrydrstarted grow question 7d ago
See my week 7 diary for details. Trying to correct early N deficiency. Its 5 days since flush and resume nutes. Not seeing much or any change yet. Any tips?
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Ultraviolet
Ultravioletanswered grow question 7d ago
Should not flush unless necessary, if you do it needs to be thorough. Nutrients are mobile/immobile, nitrogen has different types within the soil, one that's + and one that's - charged. One is highly noble in soil, the other is highly immobile in soil, when you flush if you don't do it thoroughly you can leave the ammoniacal nitrogen immobile in soil, washing out all the mobile nitrates and nitrites. If ammoniacal goes above 20% you will have problems. Make sure you know what nitrogen you have in your soil. If it was phosphorus I'd expect purple stems or purple something, none of the symptoms give p itself is mobile and would present old growth first of it was deficent. It looks to me like it's all over the plant, which would indicate to me it's more of a pH skew affecting the entire plant. Lime green interveinal chlorosis, where leaves are yellow with green veins, is most often caused by a deficiency in iron or manganese. Iron is crucial for chlorophyll production and enzyme activity. A deficiency leads to interveinal chlorosis, where the tissue between this is often due to high soil pH, Higher soil pH levels, the availability of most micronutrients (like iron, manganese, boron, zinc, and copper) decrease. Need a pH of the medium first and foremost.
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m0use
m0useanswered grow question 7d ago
N normally start from the lower growth as its a mobile nutrient. This is looking more like Fe or S, or could be a lockout type thing from to much of something or the wrong PH. No diary so hard to tell. https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg https://www.nutriag.com/wp-content/uploads/mulders-chart.jpg
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AsNoriu
AsNoriuanswered grow question 7d ago
Mg started. You dont do flushes in soil, its technique for soiless or hydro, not for soil. I found big correlation between overwatering ( meaning not having wet/dry cycle ) in soil and magnesium issues.
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John_Kramer
John_Krameranswered grow question 7d ago
that is not deficiency u overfed with P so now u u've got lockout
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RasendeRollo92
RasendeRollo92answered grow question 7d ago
Hey 👋 Why did you flush, when you had a deficiency ?! Not getting the sense of this tbh. If you have a deficiency you have to add nutrience instead of removing them with flushing… Never the less, you plants looks hungry. Give her something to eat. Watched your report and she gets lighter green wach week, so feed her some n And k. Hope this helps. Good luck
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