The plants actually look good to me. A couple older leaves turning yellow is nothing to lose sleep over. They seem dark green so I doubt it is lack of N, actually not sure you even have a problem.
This is the worst advice you could ever give somebody. When a plant is yellowing or showing signs of deficiencies it's is stressed. Stressed plants yield less!
Here's your original post from a few days ago: https://www.rollitup.org/marijuana-plant-problems/631043-yellowing-bottom-up-help.html
This is the worst advice you could ever give somebody. When a plant is yellowing or showing signs of deficiencies it's is stressed. Stressed plants yield less!
So what deficiency is it than?
So how do i treat if i don't have yellow tips?Yellow uppers, with only uppers and no other symptoms point to 2 trace elements... S and Fe... if you have yellow tips too, then you have an over-fert (with a potential toxicity) that's causing lockout of the S, Fe, or both.
is it possible overwatering caused the lock out of the nutes?
Nope, but.. if your water isn't pH'd and you're not maintaining a solid pH.. the water may have driven the pH up enough to lock nutes out.
Well im using PH perfect which adjusts the ph in the water