World Congress of Soil Science Logo 18th World Congress of Soil Science
July 9-15, 2006 - Philadelphia, Pennsylvania, USA
International Union of Soil Sciences
Thursday, 13 July 2006: 10:15 AM
67: 3.3A Future Challenges in P Fertilization and the Environment - Oral
Presiding:John Syers, Mae Fah Luang University
Convenors:Lawrence Hammond, International Fertilizer Development Center
Andrew Sharpley, "USDA-ARS, Past. Sys. & Mgmt. Res."
 Efficiency of Soil and Fertilizer Phosphorus: Reconciling Changing Concepts of Soil Phosphorus Chemistry with Agronomic Information.
John Keith Syers, Mae Fah Luang Univ, Arthur E. Johnston, Rothamsted Research
 Can Plants Deliver Food, Fibre and Solutions for Anthropogenic Soil Phosphate Problems ?.
Mike J. Hedley, Institute of Natural Resources, Stephen Trolove, Crop and Food Research
 Microbial Cycling of Phosphorus in Grassland Soils under Long-Term Fertiliser Management.
Anthony O'Donnell, Institute for Research on Environment and Sustainability, S.R. Colvan, Institute for Research on Environment and Sustainability, John Keith Syers, Mae Fah Luang Univ, R. Husband, Institute for Research on Environment and Sustainability
 Phosphate Fertilizers: Addressing the Challenges for Production, Use and Management in Developed and Developing Country Agriculture.
Lawrence Hammond, IFDC, Norman Chien, IFDC, Upendra Singh, IFDC
 Agricultural Phosphorus and the Environment: Challenges to Science, Practice and Policy.
Andrew Sharpley, USDA Agricultural Research Service, Peter Kleinman, USDA Agricultural Research Service

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