Bay-Friendly Fertilizing for Fairways and Rough
Follow these two easy steps to see just how much fertilizer you could save irrigating with reclaimed water.
About the Tool
Reclaimed water is a great and inexpensive resource for golf courses. Due to the amount of play and traffic, play areas require more maintenance and timely irrigation to ensure playability and player safety.
Reclaimed water from Sarasota County contains variable levels of nitrogen (N) and phosphorus (P). Too much nitrogen is a water pollutant.
Depending upon the level of wastewater treatment in reclaimed water production, golf course superintendents may offset their nitrogen fertilizer budget during certain times of the year. This tool was created to help you do just that.
By using the tool, you can account for your reclaimed water's nutrients in your fertilizer calculations to avoid over-fertilizing. Below you will find information on the average total nitrogen (TN) levels of the three main water reclamation facilities (WRFs) in Sarasota County.
Follow the steps below to see how much fertilizer you can save.
Depending on where you get your reclaimed water, you will likely have a different concentration of nitrogen in your irrigation water. In unincorporated Sarasota County, there are three water reclamation facilities that provide reclaimed water to golf courses, athletic fields, and other recreational facilities: the Bee Ridge Water Reclamation Facility, the Central County Water Reclamation Facility, and the Venice Gardens Water Reclamation Facility.
Type your address in the top left corner of the map below to figure out your reclaimed water service area*.
*Some reclaimed water service areas may not be available in this dataset.
Values are calculated from the 2022 and 2023 Total Nitrogen (TN) data of the Bee Ridge, Central County, and Venice Gardens Water Reclamation Facilities. Our TN values were converted from mg/L to lbs./1,000 sq. ft. using a conversion formula from Accounting for the Nutrients in Reclaimed Water for Landscape Irrigation by Martinez et al..
|Water Reclamation Facility||Total Nitrogen (mg/L)|
This line graph shows monthly fluctuations in the average TN concentration (mg/L) in 2022.
These values are based on weekly 1 inch irrigation applications through 2022.
|Water Reclamation Facility||Total Nitrogen (lbs./1,000 sq. ft)|
Using 2022 reclaimed water data, we calculated the pounds of total nitrogen applied to 100 acres of fairways and roughs at a standard golf course. The values below are based on an assumption of weekly 1 inch irrigation applications over 38 weeks. This accounts for 14 weeks of sufficient moisture when turf does not need supplemental irrigation. You can use this information to help you determine your fertilizer amendments for 2023.
|Water Reclamation Facility||Total Nitrogen (lbs. TN/100 acres)|
Tip: Test the nitrogen in your turf for more accurate fertilization.
One way to know if your turf is getting adequate nitrogen is through testing the nitrogen (N) concentrations in turf tissue.
See the table below for nitrogen recommendations for various turfgrass species. Bermudagrass, for instance, should have around 2.5 - 3.5% N concentration.
To test your turfgrass for its nitrogen concentration, mail a filled out form and turfgrass sample to the UF/IFAS Extension Soil Testing Laboratory in Gainesville, Florida.
Are you an HOA representative? If you would you like us to estimate the nitrogen in your community's irrigation water, contact email@example.com to set up a free appointment.
- Best Management Practices for the Enhancement of Environmental Quality on Florida Golf Courses
- Fertilizer Management in Sarasota County
- Fertilizer Management for Professionals
- Bermudagrass for Florida Lawns
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