lucas formula

SET UP: tent: 24x24x55 light: autocob 3500k (x2)(no reflectors) light schedule: 18/6 intake: passive exhaust: vivosun 4" fan & filter combo 203 cfm soil: pro mix hp nutrients: gh flora micro/bloom (lucas schedule) + *cal mag *ph up / down *tap water seeds: 1) fastbuds - GSC...

Im currently on day 22 of flowering and started using gh's 2 bottle, lucas formual feeding. What I don't understand is how is it that I give the plant exactly the same amount of nutes from vegetative growth through flowering? It doesn't make sense to be giving it the same ratios throughout its...