10/11/2017 8:10 AM
It depends where you are in the world but some that come to mind for the upper Midwest in general include.
Newer turf varieties that tolerate less water
Wetting Agent use to get more out of the water you do apply.
Less watered turf - native areas, shorter / narrower fairways, part circle heads to stop watering ponds, natives, asphalt etc
Irrigation system audits followed up by needed changes to heads, nozzles and proper head spacing.
Proper irrigation timing.
Accepting less than bright green turf.
For our course wetting agents sprayed on fairways along with new nozzles on the Toro 690's or converted most to 800 series heads had had a major impact on water use. I no longer have to over-water the centers of our fairways to keep the edges green.