Holy yellow leaves!

[dropcroptop]

This just in,soil grow having issues.

3 weeks into flower. Lower leaves all doing this. No nutrients beside an azamax soil drench I did 5 days ago. Should I be using nutrients at this point which is why they are lacking them.

 

[MsSinful]

Hey Dropcroptop, any chance you could post a full picture of the plant?

 

[Scientific]

Looking at the charts of nutrient deficiencies by leaf appearance, I'm gonna guess nitrogen deficiency. If it was my grow, I'd try a quick infusion of not-too-concentrated fertilizer that has a little of everything (i.e. N, P, K, plus micronutrients) on the assumption that you've just run out of something, so putting in a little of everything is probably the quickest and surest repair.

 

[dropcroptop]

This is a picture of the entire plant in the scrog

 

[Scientific]

This is a picture of the entire plant in the scrog

So... is there any soil under all that Perlite?

 

[MsSinful]

This is a picture of the entire plant in the scrog

I'm not an expert grower, I've only a handful of completed grows under my belt. With that said I think your plants look good. We lose more leaves durning flower so I wouldn't stress out.
If you planned to use flower nutes I would suggest you start them with your next watering.
I waited until week 6 of flower my last grow and I wished I hadn't.

 

[dropcroptop]

So... is there any soil under all that Perlite?

Hahaha .. how can you embarrass me like that. I thought when I couldn't get rid of "fungus gnats" that I needed more perlite. Turns out I have root aphids and the perlite had nothing to do with it. Legit I have like 3 inches of perlite on some plants hahahha

 

[coralman]

Im losing quite a few n leaves under the canopy, the plants using its energy making flowers instead of keeping shaded fan leaves alive, i dont think a small dose of npk would hurt if it spreads up the plant