Nutrients at mid-late flower

So I'm at day 32 of flower (strain finishes in 8 weeks). I'm growing hydroponically with Advanced Nutrients. I've been applying the 3-part base as a 1:1:1 ratio the whole grow. My question is should I be cutting out Nitrogen of the plants diet pretty soon? I know too much nitrogen can be detrimental to flowering later on. I mean, the plant should have enough N stored in it's leaves by now to finish out the grow without any N being added in the future, correct?

Use less micro the ph perfect gmb is 2 0 0 i use sensi cal grow 4 0 0 npk and gmb ph perfect at a 1-1-1 ratio works awesome with the cal mg with out i had yellowing.plus i use 1/4 strenght. but if my plants are dark green most diffently stop the nitrogen