Abstract
Precision irrigation utilizing soil moisture data and valve-in head sprinkler systems may be a viable solution for sustainable water management on complex turfgrass areas. There is currently no research investigating the factors that influence soil moisture and turfgrass quality variability within sand-capped golf course fairways to aid in precision irrigation-related management decisions. Therefore, the objective of this study was to measure several turfgrass and soil characteristics from two sand-capped fairways during dry down events from either rainfall or irrigation to determine their relationship and contribution to soil moisture and turfgrass quality variability. Considerable spatiotemporal variability was observed within the two fairways during the dry down periods. Factors that were found to have a significant influence on soil moisture and turfgrass quality were sand capping depth, elevation, and thatch depth, but these relationships were not consistent between rainfall versus irrigation events, days after dry down, or even the specific fairways. Also, the direction of many of the relationships were opposite of what was expected. These findings highlight the complexity of soil moisture and turfgrass quality variability on sand-capped golf course fairways. To incorporate soil moisture sensor technologies into large-scale precision irrigation practices, mapping soil moisture with an understanding of contributing factors is a necessary preliminary step. Although there are several current practical limitations, the information presented in this study provides a foundation for future research.
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Acknowledgements
The authors would like to thank the United States Golf Association Green Section and Texas A&M AgriLife Research for providing partial support of this project. We also wish to thank Jason Barrington, Golf Course Superintendent, The Golf Club at Texas A&M, for fairway use.
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Hejl, R., Straw, C., Wherley, B. et al. Factors leading to spatiotemporal variability of soil moisture and turfgrass quality within sand-capped golf course fairways. Precision Agric 23, 1908–1917 (2022). https://doi.org/10.1007/s11119-022-09912-4
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DOI: https://doi.org/10.1007/s11119-022-09912-4