Minhas plantas vão entra na fase de floração o ...

Wait until your plants have small "budlets" before switching to bloom nutrients, cannabis still needs adequate nitrogen in early flower. I usually stick with grow nutrients for the first two weeks of flowering before changing to half grow and half bloom for the next two weeks before changing again to straight bloom nutrients through until maturity. This seems to produce the biggest blooms on plants that don't completelt exhaust themseles before harvest and end up a sickly yellow colour. Remember too, try and resist the urge, or advice, to defoliate, now that your plant is flowering, she needs every leaf she has, to make the energy she needs to grow her biggest and best flowers. Hope this helps, Organoman.