Preference is Less " N" More "P" small "K" in flower.(NPK: N4-P5-K8)
Using a High "K" is good for extensive " Seed" Production. For a Little extra general sweetness I add in "K-Mag" to the soils, during flowering. Mostly in bud though I am oine who intensly uses a high " P" such as " Budswel" to fatten things up.