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Nute deficiency or burn??

Steamedclamsstarted grow question 5y ago

Deficiency or nute burn. Plant is otherwise healthy. Day 37. Only had two small feedings which were at the 50% rate of seedling dose. Soil is a cutting and seed mix with added nutes. The black marks are only on this one leaf which is new growth on the main cola.

Steamedclams

Steamedclams

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Leaves. Color - Dark-brown

Leaves. Color - Black or grey

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RealTrees_ukanswered grow question 5y ago

Looks like a sulphur toxicity but I’m fairly new to growing so definitely get a second and third opinion when diagnosing, good luck 👌🏻

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