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Yellow leaves

— Posted by Ratty on 1:03 pm on Mar. 25, 2002

This person is growingmarijuana. the bottom leaves are turnung yellow and wilting off as the new ones grow. The nitrogen levels in the soil are within the acceptable range. A superior fertilizer is being used and tests show the urea level in the soil to also be in an acceptable range. this person is using a passive wick hydroponics system. does anyone know what the problem could be?

Plants are about 11′ high. about the sets from the top is where th leaves start dying.          thanx

— Posted by Rebo on 1:24 pm on Mar. 25, 2002

your plants are likely dying from too much phosphorus. cut it way back for a couple of weeks. If that doesn’t do it, cut back the light for 2 hours

— Posted by Roland49686 on 5:26 pm on Mar. 25, 2002

What about the humidity level?

— Posted by EvilSkuzzi on 1:44 pm on Mar. 26, 2002

i dont think it will be P. Go to growkind.com and do a little reading! everyone there will be happy to help!

— Posted by Ratty on 5:04 pm on Mar. 26, 2002

Thanx fer the advice everyone. ill let you know if theres improvement!

— Posted by Ratty on 1:10 pm on April 4, 2002

the humidity is fine. the p is fine i went to growkind and couldn’t get help.  the plants are about a foot tall now and i only have four sets of leaves. the rest keep turning yellow and falling off.
Any experts out there?

please help ‘fore they die…………….

— Posted by Rebo on 1:40 pm on April 4, 2002

cut your lighting back by 2 hrs for 2 weeks. even if you anly have a few sets of leaves on the plants, you can still get huge flowereing off of the plant, so don’t despair

— Posted by ZachZach on 11:05 pm on April 4, 2002

Isnt it funny how it went from “this person” to “me”, ahahahahahhaha

— Posted by unibonger on 12:11 am on April 6, 2002

go to marijuana.com sign up best help to get, really good veteran growers man

— Posted by knightmedia on 12:36 am on April 6, 2002

Dude, if the bottom leaves are turning yellow and falling off, check the pH levels again. If the system is truly hydroponic then you’re probably already ahead of me on this.

Otherwise, Rebo is right. Cut back the light. The last time I saw it happen, all my references told me it was just natural. If the rest of the plant is healthy, I would believe them.

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