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The Essential Decision-Support Tool For Turfgrass Managers

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    Author: Bill Kreuser, PhD

    Bill Kreuser invented GreenKeeper App in 2015 to help turfgrass managers make agronomic decisions. He received his BS and MS in Soil Science from the University of Wisconsin-Madison and PhD from Cornell University in Horticulture. Bill created the first PGR GDD models with Doug Soldat, PhD in 2008 and has continued to create new PGR and DMI models. His other research emphasis is precision turfgrass management through the use of models and sensor data.

    Don’t Let the Tail Wag the Dog

    Many factors influence turfgrass growth rate. Some are beyond the manager’s control while others are frequently manipulated through normal management. Environmental factors including the recent weather and… Read more “Don’t Let the Tail Wag the Dog”

    December 23, 2021December 30, 2021 by Bill Kreuser, PhD

    Moving Beyond PGR GDD Intervals

    For nearly 15 years, Dr. Doug Soldat and I have been creating growing degree day (GDD) models for plant growth regulators (PGRs) and now DMI fungicides. These… Read more “Moving Beyond PGR GDD Intervals”

    November 3, 2021November 3, 2021 by Bill Kreuser, PhD

    Be Careful with Fall Growth Regulation

    Fall weather is coming, and that should bring changes to your plant growth regulator applications. For over a decade, we’ve known that PGRs – and even DMI… Read more “Be Careful with Fall Growth Regulation”

    September 16, 2021 by Bill Kreuser, PhD

    Mixing PGRs can transform your putting greens

    Doug Soldat and I have been developing PGR growing degree day (GDD) models since 2008. These models have helped turfgrass managers understand how clipping yield – a.k.a.… Read more “Mixing PGRs can transform your putting greens”

    June 17, 2021June 20, 2021 by Bill Kreuser, PhD

    Soil Organic Matter Models Aid Cultivation Scheduling

    Managing soil organic matter (SOM) is a primary concern for turfgrass managers. Unfortunately, changes in SOM through cultivation happen over the course of months and years. This… Read more “Soil Organic Matter Models Aid Cultivation Scheduling”

    April 21, 2021April 22, 2021 by Bill Kreuser, PhD

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