How bad is nutrient burn through foliar spray on an Autoflower

Easily the most common reason growers will see an iron deficiency is if the pH at the roots is too high. Iron tends to get locked at at higher pH levels, especially when the pH is above 7.0, and iron deficiencies are more commonly seen in soil or coco coir than in hydro.

Easily the most common reason growers will see an iron deficiency is if the pH at the roots is too high. Iron tends to get locked at at higher pH levels, especially when the pH is above 7.0, and iron deficiencies are more commonly seen in soil or coco coir than in hydro.

Potassium deficiency first should show on the lower leaves. And here we see - all leaves damaged. I think, it's your spray. Just flush leaves and feed normally. Will lose some yield, but it must survive.

I have to agree with @Whiteybulger1814 here. Looks like a potassium deficiency to me.

Your plant is just screaming Potassium deficiency and how gottagrowsometimes misses that ill never know Can be caused by: • Improper PH range • Nutrient Lockout (flush and reapply nutirents) • Stressful conditions (VPD) Organic Solutions: • Langbeinite 0-0-22 (Amended in the soil or mixed in while watering) • Kelp Meal • Glacial Rock Dust (Slow release, requires microbial breakdown) • Wood Ash (raises pH, stay vigilant) Inorganic Solutions: • Potassium Sulfate • PK Booster supplements Check your soil ph and adjust from there and if your nutrient locked out it should correct it... Good luck

Whatever it was. You threw a spanner in the works It but a thin film over your plant. And she's shown at her sides.. Why you using a N mixed foliar spray anyways? Unless needed. Leave the top to do photosynthesis. And the bottom to eat the nutes, "thru normal processe,"its roots",