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Nute lockout or deficiency? Flush with Florakleen @ week 10 ok?

jokggastarted grow question 5y ago

I am running 4 gal autopots on 50 Coco/Perlite with Jacks 321@80% strength (800PPM), up from 650PPM previous week. Have been seeing curling and leaves dying although the bottom area is green. Res/Tray@ 6PH/800PPM. Coco slurry @6PH/800PPM. Temp 81, RH 55% Should I flush?

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Leaves. Curl up

Leaves. Color - Yellow

Leaves. Color - Mottling

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HighAltitudeOrganicsanswered grow question 5y ago

Try dropping you pH to the low end of the recommended range (5.7) Looks like you’ve got an N lockout or some type of salt build up even though you said it’s not a bottom up yellowing issue. I would flush. Good luck

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