Yellowing leaves

Check your run off pH first. Inadequate pH will cause poor nutrients absorption

top dress with worm castings or add some veg nutes to get her some nitrogen.

Needs more nitrogen than what you have been giving. up the weighted average of your N value by 5-10% and se how it goes. Make sure you can tell if it is progressing, stopping or receeding -- any dead spots will not heal but a pale leaf can turn green again. this is all about rate of provision and rate of use. When provision doesn't meet use, you get deficiency symptoms for that molecule. anyway, if you see any darkness setting in on lower leaves and creeping upward on plant as it progresses, that's the sign that you upped N too much.