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Is this potassium deficiency?
nwallisstarted grow question 5y ago
Is this potassium deficiency? Starts as yellow whitish blotches on lower older leaves, also on tips/edges. Leaf eventually yellows. Also purple stems on affected leaves. Autoflowers started preflower about a week ago and have not had a real K feeding yet. Any ideas?
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TimTheTerpMananswered grow question 5y ago
Have u been feeding it calmag? If so it may be an excess of calcium. 🤘😤
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