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yellow leaf
HarrrryyyPootastarted grow question 11 days ago
Hey what happend to them laste time I give them only water. before water i give hesi tnt 5ml/1l the need K or P? the are autos hulkberry, watermelon
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Organomananswered grow question 11 days ago
Top down yellowing is a minor/micro nutrient issue, in this case and with these symptoms, it is a zinc deficiency.
If it were P or K, the symptoms would start from the bottom up, not from the top down.
Should be easy to solve with a dose or three of a soluble trace element/trace mineral mix applied to the root zone.
Soluble trace mineral mixes are available from any decent garden centre.
Avoid mixes designed purely for foliar feeding.......soil application is far more effective for the long term.
Leromeanswered grow question 11 days ago
Hey, cant tell without a diary and some more information abour your grow but my guess would be ph issues and mineral salts build up in your substrate.
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m0useanswered grow question 11 days ago
https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg
Looks like Potassium. but also maybe some micro element.
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