Yellow and brown leaves????

In soil using time released organic dry amendments. Just top dressed and watered in with a compost tea yesterday. Seems to be only affecting top leaves and working way down. The brown comes from inner veins of leaf and spread. Once I remove the affected leaf makes others worse. Pictures provided.
Temp 82°F, Light 260w HLG RSpec, Humidity 45%, Day 45 of flower, Strain Cheese by Dinafem Seeds.

Bump

You went heavy on K amendments. That's a K tox/burn.

There is a reason we don't use time release nutrients and you are looking at it

You can't adjust without causing a lockout generally

Herb & Suds said:

There is a reason we don't use time release nutrients and you are looking at it

You can't adjust without causing a lockout generally

Click to expand...

Doesn’t really answer my question specifically. I have products I can brew in a tea that can be directly available to the roots. I definitely feel it’s a deficiency and not burn.

weze said:

Doesn’t really answer my question specifically. I have products I can brew in a tea that can be directly available to the roots. I definitely feel it’s a deficiency and not burn.

Click to expand...

That's because the K tox is locking out other nutrients. It's deficient because it's toxic.

97% sure...

What did you just top dress with?

What's amended into your soil?

I'll bet it's heavy K leaning...