Green-T® Healthy Start 8-27-5 is a unique high polyphosphate and potassium formula with Polyphosphite. The ammonium polyphosphate and potassium stimulate rooting, increase cell wall structure, thickness and turgidity, while the polyphosphite stimulates the plant’s natural defense mechanism that encourages healthier plants. Each gallon of Green-T® Healthy Start 8-27-5 contains 24 oz. of PolyPhosphite 30. Polyphosphates have natural chelating capabilities which make soil bound micronutrients more available to the plant.