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Abstract
Research was conducted at a golf course in Johns Creek, GA from August 2020 to August 2022 and a greenhouse in Griffin, GA for 3 years to evaluate the effects of oxygenated nanobubble water on microbial abundance and function, turf quality and growth, and water movement and retention. Measured response parameters included bacterial and fungal abundance, enzyme activities and soil respiration, shoot and root growth, turf quality, and infiltration rate. Soil oxygen and temperature were continuously monitored with in-situ sensors. The oxygenated nanobubble water did not show consistently significant effects on turf quality, shoot, root growth, or microbial abundance and function in either greenhouse or field trials. For example, root weight was significantly higher for treatment in the field in 2022, but not in 2021. However, oxygenated nanobubble water impaired infiltration rates in the greenhouse trials. Overall, oxygenated nanobubble water did not impact turf or soil health parameters.