m0useanswered grow question 3 years ago hard to understand. Guessing you are asking whats the best ratios of n-p-k for veg vs flower and how to transition over?
Growing a ratio that has a good amount of N and K if fine. something like 5-4-5
Flowering some N is still needed followed by a good dose of P and K. Something like 3-6-7
during transition you can mix the two if they are compatible at aorund 50/50 grow/flower or follow the feeding guidelines on the bottle/bag. Keep track of your EC if its liquid feed so you know you not giving them to much. Giving to much will cause its own series of problems.
Fast plant spray??? Foliar Feeding? Not really need for beginners, just focus on some of the basics and try new stuff out when your ready.
Its good for clones but not 100% needed.
Good Luck!