Is this Nitrogen deficiency here?

[Vexor1717]

Hello, I am growing autoflowers and about 7 to 8 weeks in on full flower I start getting symptoms in all of them that look like Nitrogen deficiency. I am getting leaves like this on the very lowest leaves and spreading up. Any ideas? I shouldn't need Nitrogen in flower right? Any input welcome.

 

[Aqua Man]

Full plant pics and description.

Read Me First

Hey guys, im surprised something like this hasn't been posted before but better late than never. I know i don't make policy around here, but i would think everyone will agree with me on this. It's very hard to diagnose a plant when you don't have all the information at your finger tips. If...

www.thcfarmer.com

 

[Vexor1717]

Full plant pics and description.

Read Me First

Hey guys, im surprised something like this hasn't been posted before but better late than never. I know i don't make policy around here, but i would think everyone will agree with me on this. It's very hard to diagnose a plant when you don't have all the information at your finger tips. If...

www.thcfarmer.com

My apologies. Ok so these are autos. I use Fox farm big bloom after they begin to preflower. They are in Ocean forest soil so I dont add nutes until about a month in. I use distilled bottled water and ph to 6.0 to 6.5 after nutes added. These were running on 12/12 because of a photo I was finishing. I have gradually added hours each few days to 20/4. The leaves were beginning to yellow before I changed light. Remember these were on 12/12 is why they are so small. I dont know but looks like the same issue with all 4. Thanks again!

 

[Aqua Man]

Those pots look pretty dry. Older leaves i would not be to concerned about. They look a touch over fed and probably don't need any more nutes judging from the pot and plant size.

Would say its likely a watering issue. But I could be wrong.

 

[Vexor1717]

Those pots look pretty dry. Older leaves i would not be to concerned about. They look a touch over fed and probably don't need any more nutes judging from the pot and plant size.

Would say its likely a watering issue. But I could be wrong.

Ok thanks! I'd say that is pretty accurate. Watering issues was on my list of probable suspects. I was overwatering a bit at 1st. Lately I've been waiting until the soil is dry up to 2nd knuckle to be sure. My buddy just grabbed me coco for my next run because I hear it is difficult to overwater in coco and fabric pots. These are 3 gal btw. Do you have any nutes you'd suggest for autos in coco?

 

[Aqua Man]

Ok thanks! I'd say that is pretty accurate. Watering issues was on my list of probable suspects. I was overwatering a bit at 1st. Lately I've been waiting until the soil is dry up to 2nd knuckle to be sure. My buddy just grabbed me coco for my next run because I hear it is difficult to overwater in coco and fabric pots. These are 3 gal btw. Do you have any nutes you'd suggest for autos in coco?

Any balanced synthetic nutrient will work fine. 500-600ppm im guessing as autos feed a bit lighter.

 

[Vexor1717]

Any balanced synthetic nutrient will work fine. 500-600ppm im guessing as autos feed a bit lighter.

Oh wow... yea ive been doing 800 to 1000 ppm. I forgot to mention i have had some temperature regulation issues as well. Drops down to 60 sometimes when im not home.

 

[Aqua Man]

Oh wow... yea ive been doing 800 to 1000 ppm. I forgot to mention i have had some temperature regulation issues as well. Drops down to 60 sometimes when im not home.

Yeah wanna get that up. Keep above 65f at night and 70-80 light on.

 

[Vexor1717]

Any balanced synthetic nutrient will work fine. 500-600ppm im guessing as autos feed a bit lighter.

Seems to be working its way up further on them. I watering them fully yesterday. Anything else I should try? Switching to coco after this run.

 

[Aqua Man]

Make sure your not over watering and ride it out.

 

[Vexor1717]

Make sure your not over watering and ride it out.

Ok. Im giving straight ph'd distilled water now. Probably continue for a week then maybe finish them out with a couple 300 ppm feedings.