Golf Course Fertilizers; Koch Turf & Ornamental a Brand of Koch Agronomic Services; the Koch Turf & Ornamental Line of Enhanced Efficiency Fertilizers, Specially Created for the Golf Market, Includes Controlled Release, Slow Release, and Stablibized Technologies; Polyon Controlled Release Fertilizer with its Trademarked Green Color is Backed by Years of Research. the Key to its Performance is the Reactive Layers Coating Technology which Meters out Nutrients Via Diffusion, Regulated by Soil, Golfing Accessories, Golf Course Equipment ...