3 Weeks Veg Yellowing and Curling HELP!

chappac · Oct 19, 2009

Hello all,

Im using a NFT system, ph is between 5.5 - 6.2 The temps are a bit high at 82-86 and low humidity at about 35-40. I am using dutch hrdyo nutes at around 800-900 ppm 1.2-.14 EC My tap water is around 500 ppm 0.8 Ec so thats like 300-400 ppm of nutes if you know what mean. Im using a 600w HPS and its about 20" away from tops.

I am Running them on just PHed tap water for a few days to see if that helps.

They where fine friday and this is what they look like now

Thanks for The help Chappa

sampson0420 · Oct 20, 2009

I'm a newb, but If I had to guess, I would say nute burn or light burn. If you are not using a cooling tube on that HPS, you could be a little close especially with the low humidity like you have drying out the leaves. Good luck!

intensive · Oct 20, 2009

honestly id think the culprit was tap water, even though your ph'ing it. starting at 500 ppm is kinda high. try distilled water, its less then a dollar a gallon at any food grocery store.

chlorine and hard minerals arent the best for nutrient takeupt

3 Weeks Veg Yellowing and Curling HELP!

chappac

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sampson0420

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intensive

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