fuck it then just feed extra pk for 2 more weeks cut it back to just K for the last week or 2 or you know "flush" if your one of them pure water people, I like sugar water or potassium sulphate to finish for the last week or 3 depends on the plant
Yes I agree... Yellowing in flower is normal, the burn leaves are from over feedings with N. Ej bloom is really hard to over feed with however ej grow right now you might be over doing.