Front Row AG PROSZYME PhosZyme is a performance-enhancing bio stimulant containing Mannanase and Phosphates enzymes with mono ammonium phosphate. Mannanase enhances water activity and uptake. As the plant Rhizosphere naturally exudes starches to drive water into the xylem, Mannanase breaks down these starches, increasing the osmotic potential and enhancing water uptake. As more sugars are released back to the plant, this increases root growth and boosts microbial activity. Phosphate frees up phosphorus that is bound to cations in the substrate. When applied to the substrate, it weakens the bonds between phosphorus and its companion ions, rendering previously inaccessible fertilizer immediately plant bio-available. This increases the uptake and availability of phosphorus The usage rate is only 0.4g/gallon. So, a 5 lb. bag makes 5,675 gallons and a 25 lb. bag makes 28,375 gallons!