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09/26 Could someone tell me why the leaves of my p...
Freedoniastarted grow question 6 years ago
09/26 Could someone tell me why the leaves of my plants curl upwards? A couple of days ago I removed the plastic I use to filter sunlight. Last irrigation was 09/24. 0.5 L / pot, too much? or maybe the sun was too strong? The leaves are curl on the side where the light strike.
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mad_scientistanswered grow question 6 years ago
Hello @Freedonia ! That is phosphorus and potassium toxicity ( especially phosphorus ). 550 ppm is really not too match ( especially if your are using a slightly hard water ) . Although it would be wiser to go at 500 ppm. But 550 ppm of PK nutrient at this stage is too much. Green sensation is a PK booster with high values of PK (9-10) and is used for the last weeks of flowering. You must stop using it at this stage and start using a more complete fertilizer. Also are you sure you are using soil because it looks like with just coco and a little perlite ( coco coir despite the fact that most growers think its empty of nutrients it has large quantities of potassium that slowly releases ). Anyway leave the green sensation and start using something like terra vega from plagron. Happy growing ! 👊
Stickanswered grow question 6 years ago
Hi @Freedonia! Too many nutrients lead to this situation, you need to flush your medium as soon as possible with plain pH'd water before the toxicity kills your rootzone+plants. After the flush, see how it goes, and if they recover, try to avoid nutrients unless a deficiency starts to appear. Hope this will help, keep us up-to-date and happy growing 👊
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Athosanswered grow question 6 years ago
It's nute burn 560 PPM is too high at this stage of development, dial it back to half that amount.
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