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What is happening?
LAShugarsstarted grow question 3 years ago
Any idea what this is? Leafs are light pale green. Yellowing some with little brown spots. Started last week. Been looking up different deficiencies but not sure. please help.
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Leaves. Curl down
Leaves. Color - Yellow
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Wrongholn519answered grow question 3 years ago
It's a micro nutrient deficiency. Hit it with some cal mag and phos... the leaves that are affected will never recover but all your new growth should be okay.
This happens to be more than I'd like to admit.. if your environment is fine and your plant uptakes what she needs, she will 100% be ok
Grass_hopperanswered grow question 3 years ago
Some great answers here already.
Just want to add, it's also worth checking the PH of the solution going in and run off coming out when you see deficiencies.
The plant uptakes nutrients in a certain pH range and will struggle to get what it needs if its ( pH) out of wack.
Google search of pH and nutrient uptake for cannibas will show some graphs that explain it really well.
I had similar issues with my first run and kept upping the nutes without effect.
low solution pH was the underlying issue.
Once that was in range she was off to the races.
Don't stress dude you'll get it back on track.
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Organomananswered grow question 3 years ago
Potassium, calcium and trace element deficiencies, all at the same time.
Easily fixed with P/K booster, cal/mag supplement, (from grow shop) and a dose or three of soluble trace elements, (available from any garden centre).
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CombatCatanswered grow question 3 years ago
Calcium deficiency the upper new leaves start fading in color and get the spots
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