Ionic BoostIonic PK Boost is a plant nutrient supplement specifically formulated to be applied during the final few weeks before harvest of most fruiting and or flowering crops. Ionic PK Boost allows the grower easy control of the extra phosphorus and potassium that can lead to bumper yields. Ionic PK Boost is designed to work with Ionic Bloom and IonicBloom Hardwater, but is also compatible with almost all liquid nutrients of the bloom variety. Ionic PK Boost