Nutrient question

I am growing several female plants and am in the second week of flowering...my question is what nutrients are needed more during flowering period? If anyone could help me with this i would greatly appreciate it.
Thank You.

4-53-6 Or something like that. Nutrients for a flowering plant. Miracle grow bloom booster.

"pure blend" bloom ferts will treat you right.

Phosphorus is needed more during flowering and as a seedling.