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Hey everyone. I have a few plants that have yell...

Shenelly78
Shenelly78started grow question 4 months ago
Hey everyone. I have a few plants that have yellow tips. More towards the top of the plant. Could this be a heat problem from light being to close I have it 20 inches from the canopy. Plants are nearing need of 5 week. And are flowering and they are autos. Thanks for the help
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SimpleGrow
SimpleGrowanswered grow question 4 months ago
Normally when Cannabis goes into flower, it devotes all of it’s energy in creating buds. Therefore it’s canibalising it’s own leaves to care for their ofspring. This happens even to the healthiest of plants, you can google it. So my guess is there is a lack of Nitrogen in your feeding. Because actually based on the amounts of fertelizer you put In (I asume it weighs roughly 1kg/1Liter) you are feeding roughly the following npk (i don‘t have the weight of the fertelizer): 78mg/L Nitrogen, 78mg/L Phosphorous and, 175mg/L. You can exchange the mg/L with ppm. There are many studies done with hundreds of cannabis plants suggesting that a minimum amount of at least 160mg/L (or ppm) of Nitrogen is very much advisable. It’s a myth that they don’t need Nitrogen during flower since the plant grows nearly double in sice during the first weeks only. So companies are putting less in „Bloom“ or flower products, wich goes contrary to credible studies of Nutrition for cannabis. Anyways, If you have any other fertelizer laying around that has an npk of at least 5-0-0 or 5-1-1, something along those lines, 1-2 ml/L would do the trick imo
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SimpleGrow
SimpleGrowanswered grow question 4 months ago
I don‘t know what melasse contains but I would strongly suspect it doesn‘t have any Nitrogen in it. (?)
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KrautFabrik
KrautFabrikanswered grow question 4 months ago
That's easy, you overfeeding them 😅 2 option: 1. Go down with nutrients or skip next feedings with only water (watering/feeding till drain ist important, if you don't water them till drain I would suggest to Google it or pm me) 2. Flush them with pH stable water (if needed. Organic nutrients on soil don't need it if you have ggod tap water like in Germany)and wait till it's dry and go on normally. Good luck and happy growing 🤞
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