blood/bone meal?

so i ve heard good things about blood and bone meal as fertilizers but one has high P and the other high N so shuld i just mix in the blood meal into my soil (high N) for my 18/6 veg state and then move the plant into a separate pot with my soil mixed with bone meal (high P) for my 12/12 flowering state? Is that right?

also does anyone kno how much of each is recommended per a certain amount of soil?

its should be on the packages..dont use to much though..a little goes a long way of that shit

My tip from experience. Be carefull with that stuff. Don't ad to soil and keep for future use or for that matter the same happened in a pot immediately put under light. Made for mold in soil and smelled like ass. My best suggestion and this stuff is a miracle to weed is to get Ocean Forest and go that route. OF make growing super looking plants and nothing needs to be added but perlite and lime. I suggest don't waste your time/money on anything else because OF was developed for weed and nothing else....exact soil recipe breakdown if needed just ask. The OF stuff make almost dead leafs upon replant come back to life...its a miricle i tell ya...