you want big full thick buds, i used to grow a few nugs for myself then i out grew my self, yeild will be based on input of light to the plant. with 1k of light for a 5x5x7 area will require good feeding. i use fox farm big bloom 4 cap fulls and fox farm tiger bloom 2x cap full per gallon of water this sets the ppm from 37 ppm to 1320 ppm. they are fed fox farms grow big 6 4 4 from 3 weeks after rooting or germination @ 1 cap full per gallon every watering these plants show vigor and robust growth good soil correct ph is the key.
when you are ready to flower stop grow big one week before you want to flower then heavy first feeding 6x cap fulls big bloom 2x tiger bloom. granted they get tons of light 150000 lumens. you cAan get a ppm meter and a food chart for hydro and soil and double yeilds