Koch Agronomic Services DURATION fertilizers

Koch Agronomic Services, LLC’s DURATION® family of controlled release fertilizers features advanced, polymer-coated technology that reliably releases nitrogen, continually feeding turf for up to 180 days per application.

Duration CR® fertilizer eliminates plant stress and produces healthy, green turf that resists weeds and diseases. Its annual cost per square foot is less than conventional fertilizers, and, with fewer applications, nitrogen use is reduced by up to 40 percent.

Fewer applications leave more time to service additional properties. And, because plants take up more nitrogen, less is lost to leaching and volatilization, making Duration CR® a more environmentally friendly alternative.

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