Organic Crop Production - Ambitions and Limitations

Preface, Holger Kirchmann and Lars;1. Widespread opinions about Organic Agriculture - Are they supported by scientific evidence? Lars Bergström, Holger Kirchmann and Gudni Thorvaldsson; 2. Fundamentals of Organic Agriculture - Past and Present, Holger Kirchmann, Gudni Thorvaldsson, Lars Bergström, Martin Gerzabek, Olof Andrén, Lars-Olov Eriksson and Mikael Winninge; 3. Can organic crop production feed the world? Holger Kirchmann, Lars Bergström, Thomas Kätter, Olof André and Rune Andersson; 4. Plant nutrients in organic farming, Keith Goulding, Elizabeth Stockdale and Christine Watson; 5. Nutrient supply in organic agriculture - plant availability, sources and recycling, Holger Kirchmann, Thomas Kätterer and Lars Bergström; 6. Synthesis of the Apelsvoll cropping system experiment in Norway - Nutrient balance, use efficiency and leaching, Audun Korsaeth and Ragnar Eltun; 7. Use efficiency and leaching of nutrients in organic and conventional cropping systems in Sweden, Lars Bergström, Holger Kirchmann, Helena Aronsson, Gunnar Torstensson, and Lennart Mattsson; 8. How will conversion to organic cereal production affect carbon stocks in Swedish agricultural soils? Olof Andrén, Thomas Kätterer and Holger Kirchmann; 9. Energy analysis of organic and conventional agricultural systems, Göte Bertilsson, Holger Kirchmann and Lars Bergström; 10. The role of arbuscular mycorrhizas in organic farming, Megan H. Ryan and Mark Tibbett; 11. Organic food production and its influence on naturally occurring toxins, Carl K. Winter