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Help diagnosing deficiency
Eagersstarted grow question 4 years ago
Can someone help diagnose this? Is this a Nitrogen deficiency or a Potassium deficiency, Ph runoff is fine 6.4 and EC runoff is 1.8. Lower leaves have been yellowing and dropping so last feed I upped grow to 1.5ml/l from 1.0ml growth has been good. Dont want issues now tho Thanks
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Leaves. Veins - yellow between
Leaves. Color - Yellow
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GMSgrowsanswered grow question 4 years ago
You sound like your in a pretty good place. The ec your feeding is a little high if your early bud. Older lower leaves will turn yellow and die. If the entire plant starts yellowing early, and your runoff ph and ec are good then there wanting a little more food. Early flower I run 1.2 ec in a week if I see yellowing happening I up my feed to 1.6 and run at that amount through mid flower, maybe 1.7 if they need that much. Late flower back to 1.2. Cheers
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