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Title:   Author  item
                                            Rice, Pamelaitem
                                            HORGAN, BRIAN - UNIVERSITY OF MINNESOTA
  Submitted to: SETAC Conference
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 8/1/2007
                                    Publication  Date: 11/11/2007
                                    Citation: Rice, P.J., Horgan, B.P. 2007. Use of Management Practices to Mitigate Chemical Transport with Runoff from Fairway Turf [abstract]. SETAC Conference. Milwaukee, WI, Nov. 11-15, 2007. 2007 CD ROM.Interpretive Summary:
                                Technical Abstract: Water quality surveys have detected chemical pollutants in surface waters of urban and rural areas. As a result, attempts are being made to identify the sources of these compounds and reduce their inputs. The use of fertilizers and pesticides in highly managed turf systems has raised questions concerning the contribution of runoff from managed turf.  To address these questions we designed experiments to measure the quantity of fertilizers and pesticides transported with runoff from turf plots maintained as a golf course fairway, and to evaluate the ability of management practices to reduce the transport of applied chemicals with runoff. In the initial study, half of the plots were aerated with solid tines while the remaining plots were aerated using hollow tines. Fertilizer (18-3-18 [N, P2O5, K2O]) and commonly utilized herbicides (2,4-D; MCPP), insecticide (chlorpyrifos), and fungicide (flutolanil) were applied to all plots prior to the initiation of simulated precipitation. Hollow tine aerification increased rainfall infiltration, reduced runoff volumes and chemical transport with runoff. The addition of vertical slicing to hollow tine aerification further reduced runoff volumes and the off-site transport of nutrients and pesticides with runoff. This research provides information that will allow for informed decisions on management practices that offer quality turf and are environmentally responsible. Understanding pesticide and fertilizer transport with runoff and identifying strategies that reduce off-site transport of applied chemicals will increase their effectiveness at intended sites of application and minimize potential undesirable effects to surrounding areas.


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