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Title:   Author  item
                                            Rice, Pamelaitem
                                            HORGAN, BRIAN - University Of Minnesota
  Submitted to: Trade Journal Publication
                                    Publication Type: Trade Journal
                                    Publication Acceptance Date: 11/23/2009
                                    Publication  Date: 1/1/2010
                                    Citation: Rice, P.J., Horgan, B.P. 2010. Nutrient Loss in Runoff from Turf: Effect on Surface Water Quality. USGS Turfgrass and Environmental Research Online (TERO). 9(1):1-10. Available at http://usgatero.msu.edu/v09/n01.pdf.Interpretive Summary:
                                Technical Abstract: Excess nutrients in surface waters may result in enhanced algal blooms and plant growth that can lead to eutrophication and a decline in water quality. The applicatin of fertilizer to golf courses may be a source of nutrients to surface waters. Runoff studies were conducted to measure applied nitrogen and phosphorus loss in runoff from creeping bentgrass (Agrostis stolonifera L.) turf managed as a golf course fairway. Quantities measured in the edge-of-turf runoff were used to calculate surface water concentrations of a pond receiving runoff from turf. Runoff and surface water concentrations were compared with water quality standards to evaluate potential environmental effects of turf runoff. Key observations of the study were: less than 12% of the applied ammonium nitrogen, nitrate nitrogen or soluble phosphorus was measured in the runoff; phosphorus concentrations in runoff were greater than water quality criteria to limit eutrophication; nitrogen concentrations in runoff were greater than levels associated with increased algal growth while nitrate nitrogen concentrations were below the drinking water standard to prevent blue baby syndrome; phosphorus concentrations in a pond receiving runoff remained above levels associated with increased algal growth and eutrophication of lakes; and nitrogen concentrations in a pond receiving runoff were below levels associated with increased algal growth.


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