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Upward Curling Brown Leaves/Nutrient Lock Out?
HappyHarveststarted grow question 6y ago
I've got a serious issue. Started 3-4 days ago, right after adding nutrients and increasing light.
Leaves are curling upward and browning. Not crumbling yet but look like they will be soon.
Both new and old growth is being effected.
Maybe the Mineralized Phosphate was too much.
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Spyder7answered grow question 6y ago
I'm guessing nutrient burn (too much P) and light stress. Time to thoroughly flush and back the light off.
Jevonbearbearanswered grow question 6y ago
Looks like nutrient burn. Flush your medium. I found that top feeding like with phosphates and other organic nutes can really burn up a crop if not done right.
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TimTheTerpMananswered grow question 6y ago
Totally nutrient burn.. I'd do a flush with just pH'd water asap.. and then after she perks back.. start up again at a lower dosage.. 👊
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