Purple kush 6th week flower fan leaves yellowing please help

As the title says I just started the 6th week of flower and this is what she looks like.
To my eye it's nitrogen deficiency, My question is with 2 to 3 weeks remaining should I add veg nuts to fix the problem or leave her how she is and start my flush next week?
On another subject does any one use ROCK NUTRIENTS here?
Rock users how much Resinator do you use for your flush? I read it can me as much as 20ml per gallon but I would love to hear your techniques.
I attached pictures below...

I would not add veg nutes at this stage. You do not want to encourage new growth. You want her to finish. The plant is taking the N it needs from those leaves.

It appears fine to me. It's just going through its natural life stage where all the food in the larger leaves is being used up by the flowers. I wouldn't do anything -other than pure. clean water. You probably can let them go for another couple weeks…at least….and just let them go through their "Fall color". That will likely be a very beautiful plant when all the leaves yellow against the purple buds! Gorgeous!

Thanks so much guys I appreciate your time very much . I'll update you all in a couple weeks with what the plant looks like just before harvest if any ones interested.