Golf Course Management

OCT 2018

Golf Course Management magazine is dedicated to advancing the golf course superintendent profession and helping GCSAA members achieve career success.

Issue link: http://gcmdigital.gcsaa.org/i/1031201

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68 GOLF COURSE MANAGEMENT 10.18 3. Franco, C.M.M., M.E. Tate and J.M. Oades. 1995. Studies on non-wetting sands. I. The role of intrinsic particulate organic-matter in the development of water-repellency in non-wetting sands. Australian Journal of Soil Research 33:253-263. 4. Frankewich, R.P., and W.L. Hinze. 1994. Evaluation and optimization of the factors affecting nonionic surfactant-mediated phase separations. Analytical Chemistry 66:944-954. 5. Karnok, K.J. 2006. Which wetting agent is best? Golf Course Management 74(7):82-83. 6. Karnok, K.A., E.J. Rowland and K.H. Tan. 1993. High pH treatments and the alleviation of soil hydrophobic - ity on golf greens. Agronomy Journal 85:983-986. 7. Karnok, K.J., and K.A. Tucker. 1989. The cause and control of localized dry spots on bentgrass greens. Golf Course Management 57(8):28-34. 8. Karnok, K.J., and K.A. Tucker. 2000. FAQs about LDS: Localized dry spot fuels superintendents' ques - tions. Golf Course Management 68(6):75-78. 9. Karnok, K.J., and K.A. Tucker. 2002. Water-repellent soils, Part 2: More questions and answers. Golf Course Management 70(7):49-52. 10. Karnok, K.J., and K.A. Tucker. 2007. More FAQs about LDS: Hot spots and label rates. Golf Course Management 75(6):109-111. 11. Karnok, K.J., and K.A. Tucker. 2009. Answers to questions about wetting agents. Golf Course Man - agement 77(8):82-85. 12. McKenna, F., K.A. El-Tarabily, S. Petrie, C. Chen and B. Dell. 2002. Application of actinomycetes to soil to ameliorate water repellency. Letters in Applied Micro - biology 35:107-112. 13. Roper, M.M. 2004. The isolation and characteriza - tion of bacteria with the potential to degrade waxes that cause water repellency in sandy soils. Australian Journal of Soil Research 42:427-434. 14. Tucker, K.A., K.J. Karnok, D.E. Radcliffe, G. Landry Jr., R.W. Roncadori and K.H. Tan. 1990. Localized dry spots as caused by hydrophobic sands on bent - grass greens. Agronomy Journal 82:549-555. Enzhan Song was a Ph.D. student at the University of Mis - souri (Columbia) and is currently with Agriculture Develop- ment Group Inc. in Eltopia, Wash. All of the other authors are affiliated with the University of Missouri, Columbia, Mo.: Keith W. Goyne is associate director of the School of Natural Resources and professor of environmental soil chemistry; Robert J. Kremer is an adjunct professor of soil science in the Division of Plant Science and in the Department of Soil, Environmental & Atmospheric Sci - ences; Stephen H. Anderson is William A. Albrecht Dis- tinguished Professor of Soil and Environmental Sciences and an adjunct professor in Plant Sciences; and Xi Xiong (xiongx@missouri.edu) is an associate professor in the Division of Plant Sciences. RESEARCH SAYS • Soil water repellency leads to localized dry spot, a widespread issue that is more common on sand-based growing media such as USGA greens. • In a laboratory setting, sand collected from a green with localized dry spot was treated with two wetting agents, a surfactant and deionized water. • Sand treated with either deionized water or the surfactant showed no change in soil water repellency. • The wetting agents OARS and Matador showed promise for reducing soil water repellency to minimum or none; Matador removed a significant portion of organic coatings from the sand, suggesting that it can reverse soil water repellency. • Because this experiment took place in a lab, caution is needed when interpreting the results for field conditions.

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