Drought Resistant Turf
Most turf is constructed using a sand substrate that promotes rapid water infiltration and high airfilled porosity. The addition of zeolite to the sandy substrate will increase nutrient and water retention without compromising airfilled porosity. The nutrients and water are absorbed into the zeolite and are available to the turf as and when needed.
Golf course turf, particularly on sloping, hillocky and compacted ground, can suffer from dry patches through high water runoff and poor water infiltration, resulting in sparse grass cover. Broadcasting granular zeolite over and tilling it into the soil will reduce runoff and promote infiltration of nutrients and water through the root zone, effectively restoring grass cover through water retention.
Zeolite can be used for top dressing as an additive with sand when opening-up turf through coring and cutting operations.
The following study examines USA zeolite which is geologically soft compared to our geologically hard Australian zeolite. Hard zeolite improves soil structure.l
Also, Australian zeolite does not have the problem of dissolved salts and clay mentioned in the report.
Potential for Natural Zeolite Uses on Golf Courses
By A. Martin Petrovic, Associate Professor of Turfgrass Science, Cornell University, Ithaca, New York
"With such strong findings, coupled with the results from previously published research, it appears that clinoptilolite could
make an excellent amendment of sand for putting greens. Some words of caution should be noted, however. To my knowledge, only a handful of golf courses have used clinoptilolite to either amend new greens or to use as a topdressing on existing greens. To date the results have been encouraging. The long-term stabilityof the crystalline structure is one major question that still needs to be addressed. If the zeolite weathers or is crushed by traffic, will it remain a sand-size particle or become silt clay size, clogging the highly pervious sand? We are initiating several short- and long-term studies to answer these questions. Long-term evaluation on actual golf courses with clinoptilolite-amended sand greens is
Click here to read the full report.
By Robert N. Carrow, Donald V. Waddington, Paul E. Rieke
Even though the link goes to page 58 of this study, the subheading Zeolite Incorporation starts on page 57 so please scroll back a page. Click here for link.