Atomic Fusion Part N Late PK Booster (Compares to Phosphoload) (8oz) Compares to Phosphoload and Bush Load MINUS Harsh Chemicals ! Makes flowers harder and activates your crops flower production Helps increase flower mass and final weight Most cost effective professional formula on the market Works with hydroponic and soil ( Compare to Fox Farm , Advanced Nutrients , Botanicare , General Hydroponic and Dutch Master )