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Is this potassium deficiency?

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Is this potassium deficiency?

Blazeman 11 Replies 1,525 Views
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Blazeman

Blazeman

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Is this potassium deficiency


7 lb bags, organic soil, watering as needed (approx 2 times a week), under 1000w HPS lights dimmed to 600w.
I just cant seem to get on top of this. We have flushed twice.
 
from what i have seen on google it looks like potassium deficiency.
 
pretty cool how different nutrient deficiencies and toxicities can cause such different visual changes to the plant
 
looks like magnesium deficiency to me. leave those fan leaves on though next time, they still help the plant
 
Where does the issue start on a plant, at the bottom first? How & what are you feeding? pH & ppm?
 
Hot acidic soil will do that. What are the runoff numbers?
 
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