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Grow QuestionsNutrient burn and what else?

Nutrient burn and what else?

whoawhoastarted grow question 5 years ago

RQS Northern Light Auto, 8 week-old (3 weeks flowering), Coco+Perlite (70/30), GHE FloraSeries + Cal-Mag, TS1000 LED 150W, 15L pots. Lady suffered from nute burn last week, but I think I managed it by dropping EC to 1~1.2. Now there are brown spots on upper leaves, suggestions?

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Buds. Not fattening

Leaves. Tips - Burnt

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whoawhoaanswered grow question 5 years ago

@Fruitgrower @Nobody01 I thought about it too, but I only see those spots on upper leaves! Ca deficiencies should start from bottom, right?

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Fruitgroweranswered grow question 5 years ago

It's because of your nute burn issue it's locking out access to calcium and magnesium. 🌱👍Give her flush and look at reducing your feed.

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NobodysBudsanswered grow question 5 years ago

Based on recent behaviour, it could be a Ca deficiency. (between Ca and Mg, it doesn't look like Mg... a K-def is less likely, but would have spots like tha tlower on plant with some fading and burnt tips.)

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