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: 8:00 AM
59: 4.1A Organic Farming – Advantages and Disadvantages for Soils, Water Quality and Sustainability - Oral
Presiding:Holger Kirchmann, Swedish Univ. of Agric. Sci.
Convenor:Laurie Drinkwater, Cornell University
 Plant Nutrients in Organic Farming.
Keith Goulding, Rothamsted Research, Elizabeth A. Stockdale, School of Agriculture, Food and Rural Development, Christine A. Watson, Scottish Agricultural College
 Nutrient Use Efficiencies and Leaching in Organic and Conventional Cropping Systems in Sweden.
Lars F. Bergström, Dept of Soil Science, Swedish Univ of Agricultural Sciences, Holger Kirchmann, Dept of Soil Science, Swedish Univ of Agricultural Sciences
 Are Nutrient Dynamics and Use Efficiency in Organic Cropping Systems Particular.
Emmanuel Frossard, Group of Plant Nutrition ETH, Astrid Oberson, Group of Plant Nutrition ETH, Christine Bosshard, Group of Plant Nutrition ETH, Simone Nanzer, Group of Plant Nutrition ETH, Hans Ulrich Tagmann, Group of Plant Nutrition ETH, David Dubois, Agroscope Reckenholz, Paul Mäder, FiBL, Daniel Tessier, INRA
 The Contribution of Organic Agriculture to Sustainable Land Management in a Temperate Climate.
Robert M. Rees, Scottish Agricultural College (SAC), Christine A. Watson, Scottish Agricultural College (SAC), Bruce C. Ball, Scottish Agricultural College (SAC), John A. Baddeley, SAC, Robin L. Walker, Scottish Agricultural College (SAC), Kairsty F.E. Topp, Scottish Agricultural College (SAC), Claus D. Mayer, BIOSS
 Soil and Nutrient Erosion Risk in Organic and Conventional Cropping Systems.
V. Steven Green, USDA-ARS-SASL, Michel A. Cavigelli, USDA-ARS-SASL, Thanh H. Dao, USDA-ARS, Dennis C. Flanagan, USDA-ARS-NSERL

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