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- Title
The Fate and Transport of Phosphorus in Turfgrass Ecosystems.
- Authors
Soldat, Douglas J.; Petrovic, A. Martin
- Abstract
Phosphorus losses from turfgrass areas are perceived to contribute to water quality problems, yet a comprehensive review of P fate in turfgrass ecosystems is lacking. According to available data in the literature, phosphorus fertilizer inputs (2-10 kg ha-1) slightly exceed the estimated outputs of phosphorus in clippings (0.4-7.5 kg ha-1). Sediment losses from turf areas are negligible, generally limited to establishment, but runoff and leaching losses of P vary from inconsequential to severe depending on rate, source, and timing of fertilizer application. Soil properties were found to have a larger effect on runoff volume than vegetative properties. Highest runoff and leaching losses of P occurred when rainfall occurred or was simulated shortly after P fertilizer application. Leaching losses of P have historically been considered relatively minor; however, the limited research results available indicate that annual P leaching losses from mineral soils (0.2-0.7 kg ha-1) are similar in magnitude to runoff-P losses from turfgrass systems. One major gap in the knowledge is how P sources other than fertilizer (i.e., soil and plant tissue) and irrigation affect runoff and leaching losses of P.
- Subjects
BIOTIC communities; PHOSPHORUS in water; WATER quality; PHOSPHATE fertilizers; TURFGRASSES; PLANT cells &; tissues; HYDROLOGIC cycle; ENVIRONMENTAL management; MANAGEMENT science
- Publication
Crop Science, 2008, Vol 48, Issue 6, p2051
- ISSN
0011-183X
- Publication type
Article
- DOI
10.2135/cropsci2008.03.0134