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Yellow leafs
GoGscrashstarted grow question 2 years ago
Whats could be happen? Coco, ph of water 6.8, ec 1.7, temp of water 20, RH 60%, day temp 24.5, night temp 18.5, but in two nights i dont turn on a heater. In this two nights i have a lower temp 10.7. L. Schelude 20/4. 3 week. Plss what i can make now? :(
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Leaves. Color - Yellow
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Xpie77answered grow question 2 years ago
It's because of the salt in the Coco. They didn't wash it good. This is salt poisoning
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GrowingGrannieanswered grow question 2 years ago
This is a classic phosphorus deficiency - and probably calcium ... I don't see that you are feeding this lady but maybe you are and not recording it in your diary?? If you're growing in coco, your pH is way WAY too high - needs to be between 5.5 and 6.2.. You're also going to be stressing her out with that big a temp swing...
So those were random thoughts - let me put it all together for you in some way that might make some sense. I'm going to assume you're feeding her SOMETHING... if you're not, start. She needs a good regimen of NPK nutes - but she also needs a much lower pH because the nutrients she needs, particularly phosphorus, are not available to her when the pH is over 6.2. Those two things are the most important for her right now - get some NPK in her at the right pH level...
Good luck!
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