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Brown spots in old and new leaf
BrazilianKushstarted grow question 4y ago
Day 65 of vegetative
Rh 45
Air temp 22 celcius
9 liter pots
Fert : jacks 321 1250ppm
1x week 700ppm for clean
Always measure ppm that comes out
The only control o dont have 100% is PH. Im usying paper stripes so i dont know for sure if im giving 5.5 , 6.0 or 6.5.
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Leaves. Edges burnt
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Robertsanswered grow question 4y ago
It is potassium related. Not enough. I have experienced this in longer photoperiods vegging. Potassium is the most important nutrition in a plants life. Vegging npk ratio is 3-1-2. Flowering npk ratio is 1-2-3
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