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Lower fan leaves look burnt/deficient mid flower

Hi,

I'm not sure if I should do anything about it but it looks like the lower fan leaves might have some nitrogen deficiency but towards the light it still looks fine. One attached pic is taken from above while the other is taken of the leaves in question.

I'm using a DWC type setup and nutrients mix A and B where A contains:
Nitrogen N 66g/kg
Phosphorus P 45g/kg
Potassium K 239g/kg
Magnesium Mg 45g/kg
Sulphur S 71g/kg
Trace Elements:
Iron Fe 1700 mg/kg
Manganese Mn 400mg/kg
Boron B...

Lower fan leaves look burnt/deficient mid flower
August 22, 2017 at 11:36AM

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