I know that plants need more phosphorus during flowering but does anyone know the best thing to add to produce the most bud?

I am using the fox farm trio and following the schedule.
bubadutep75 Reviewed by bubadutep75 on . HELP!! Best Flowering Nutrients I know that plants need more phosphorus during flowering but does anyone know the best thing to add to produce the most bud? I am using the fox farm trio and following the schedule. Rating: 5