1-3-2 is the N-P-K ratio that you are after for bloom. Start this in week 3. Weeks 1 & 2 are the transition period and still need the N for growth.
In veg. your N-P-K ratio should be near 3-1-2.
I personally make organic tea's using EWC, Kelp, Alaskin Humisoil, Microbes, Bat Guano's, Alfalfa Meal, and Molasses.
You can taylor your tea's to your plants needs and growth state.
There are also some good pre-made tea's out there, like Budswell.