by Bill Kreuser | Jun 17, 2026 | Blog
GreenKeeper, like the weather apps on your phone, uses extremely high-resolution weather models to estimate current conditions and forecast future weather. These systems combine observations from airports, weather balloons, satellites, and weather radar with...
by Bill Kreuser | Mar 12, 2026 | Blog
Today’s weather forecast shows a 10% chance of rain in the late morning. Do you throw your rain gear in the cart? What if the forecast shows a 30% chance at 7:00 a.m.? Even without formal training in statistics, we use probabilities like these to make practical...
by Bill Kreuser | Feb 23, 2026 | Blog
I first learned about growing degree days (GDDs) in my introductory agronomy course at UW–Madison. These models used daily average temperature to predict biological processes such as corn development. I later learned that GDDs could also be used to schedule seedhead...
by Bill Kreuser | Jul 18, 2025 | Blog
All models are wrong, but some are useful. — British Statistician George E. P. Box This classic quote largely credited to statistician George Box perfectly sums up the challenge of decision-making in turfgrass management. It captures every superintendent’s daily...
by Bill Kreuser | May 19, 2025 | Blog
Most turf managers use soil surfactants – frequently called wetting agents – to improve soil water uniformity and increase irrigation efficiency on sand-based root zones. These types of soils can quickly develop issues of hydrophobicity where organic...
