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Deficienty - what is it?

koronkonkostarted grow question 5y ago

What is this symptom? Calcium? mostly middle section, autoflowering pH 6,4, day 45, soil, LED. Yesterday I foliar spray with cal-mag.

koronkonko

koronkonko

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Leaves. Curl down

Leaves. Color - Dark-brown

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Mr_Weeds_Autosanswered grow question 5y ago

You nailed it, this is a calcium deficiency, and since you've already started with a Cal-Mag Foliar spray she should be fine. After deficiency is cleared up, the problem (brown spots and unhealthy new leaves) will stop appearing on new growth, usually within a week. leaves that have been damaged will probably not recover or turn green, so you want to pay attention to new growth for signs of recovery.

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