GREENKEEPER BLOG

How Much Can Surface Organic Matter Change in a Year?

Scheduling cultivation and topdressing is always a tricky and sometimes controversal task. These practices are disruptive to players, costly, and tough on turf equipment. How much cultivation is really required? What's the right amount of sand topdressing for a...

A Thermometer Is a Better Clock Than a Calendar

In the first article of the GreenKeeper Growth Series, we used nearly 500,000 clipping-volume measurements to examine how much putting greens actually grow. One of the clearest environmental signals associated with that growth was temperature. This week, we are taking...

A Very Strong El Niño Is Building. What Should Turf Managers Expect?

El Niño is strengthening quickly, and the months ahead could bring unusual weather patterns around the world. The US National Oceanic and Atmospheric Association now gives greater than a 90% chance that the 2026–27 El Niño becomes very strong during the Northern...

How Much Does a Putting Green Actually Grow?

This launches the GreenKeeper Growth Series: an ongoing look at what we’ve learned from 500,000 clipping volume observations. Over the coming weeks, we’ll use this dataset to explore how putting greens grow, how factors like weather, fertility and PGRs influence...

When 60% Regulation Still isn’t Enough

Summer Created a Misleading Growth Surge It has been a hot, humid summer across much of the U.S., and one of the most common questions we’ve received is some version of: “Why is my PGR program not working anymore?” The evidence is usually sitting in the mower baskets....

Hi-Res Surface Organic Matter Analysis in GreenKeeper

Surface organic matter has always been one of the most important—and frustrating—variables to manage on putting greens. We know it influences firmness, infiltration, water holding capacity, and pest pressure. We also know that topdressing and cultivation are our...

Why Your Rainfall Data May Be Wrong: The Challenges of Estimated Precipitation

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...

A Completely New WhiteBoard Experience for Turf Managers

GreenKeeper WhiteBoard has been rebuilt from the ground up with a modern user experience, intelligent planning tools, and unmatched flexibility for daily turf operations.Daily labor planning in turf management is complicated. Every day, turf managers balance changing...

Your Spray Program Shouldn’t Keep You Up at Night

​Building a spray program can be stressful. You're thinking about pest control, fertility, PGRs, wetting agents, and plant health products. Are products from the last application still doing the job? Then comes the mixing math. A misplaced decimal or a wrong unit can...

Moving Beyond Pretty Maps

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...
Realize the Power of Precision with GreenKeeper CIS

Realize the Power of Precision with GreenKeeper CIS

Superintendents and field managers need to hold a mental map of their property in their heads. They know which spots are first to wilt, where disease pressure is highest, and the locations of perennial pests requiring preventative treatment. Those observations are...

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Simplify Your EOP Planning

Simplify Your EOP Planning

Love it or hate it, Early Order Program season has returned. Personally, l’m relieved to have survived another hot Nebraska summer. The last thing I want to think about is the plan for next year. Still, the discounts, rebates and rewards can be tough to pass up each...

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August Sugar Lows

August Sugar Lows

It’s the middle August and many turfgrass plants are feeling as tired as their turfgrass managers. The recent extreme heat is taxing cool-season grasses like ryegrass, bluegrasses and bentgrass while summer weeds like goosegrass, foxtail and crabgrass are thriving....

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How much grass WOULD have been in the buckets?

How much grass WOULD have been in the buckets?

For years, golf course superintendents have asked the question to their greens mowing crew, "How much grass did you get today?" Common answers usually included "a lot" or "a little" or maybe more precisely how many times they needed to dump the mower buckets. But have...

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Growth Rate Goals

Growth Rate Goals

We have been advocating daily measurement of growth rate on highly maintained turfgrass to improve management precision. Clipping volume measurements provide actionable data to help guide PGR applications and evaluate the efficiency of a fertilization program. But how...

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Simple but Actionable Data: Part One

Simple but Actionable Data: Part One

The word is getting out. Data collection and analysis can improve turf management efficiency. The team at GreenKeeper are excited to bring artificial intelligence and mower-mounted sensors to the turf management industry in 2023. These forms of data and analysis will...

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