Front Cover; Agricultural Sustainability; Copyright Page; Contents; Contributors; Foreword; Preface; I. Agricultural Biodiversity, Organic Farming, and New Crops; 1 Functional Agrobiodiversity: The Key to Sustainability?; 1. Introduction; 2. Agricultural Sustainability at the Onset of the Third Millennium; 3. Agrobiodiversity: A Conceptual Framework; 3.1 Genetic Agrobiodiversity; 3.2 Species Agrobiodiversity; 3.3 Ecosystem Agrobiodiversity; 3.4 Limitations of the OECD Definition of Agrobiodiversity; 4. From Agrobiodiversity to Functional Agrobiodiversity 4.1 Functional Biodiversity: A Plethora of Definitions4.2 Functional Agrobiodiversity: A Methodological Approach; 5. Functional Agrobiodiversity in Practice; 5.1 Genetic Agrobiodiversity; 5.2 Species Agrobiodiversity; 5.3 Ecosystem Agrobiodiversity; 6. Functional Agrobiodiversity: Opportunities and Bottlenecks; 6.1 What Could Favor Functional Agrobiodiversity?; 6.2 What Could Hinder Functional Agrobiodiversity?; 7. Conclusions; Acknowledgements; References; 2 Organic Agriculture-Driving Innovations in Crop Research; 1. Introduction 2. Soil Fertility and Organic Farming in the Tropics-Challenges and the Way Forward3. Plant Breeding Strategies for Organic and Low External Input Farming; 4. Functional Biodiversity and Pest Management in Organic Farming; 5. Agricultural Innovation-The Need for Transdisciplinary Research and Development; 6. Outlook; Acknowledgements; References; 3 Guar: An Industrial Crop from Marginal Farms; 1. Introduction; 2. Origin, Genetics, and Breeding; 3. Water and Salt Stress; 4. Seed Composition; 5. Galactomannan Properties, Biosynthesis, and Degradation; 6. Preparation and Applications of Guar Gum 6.1 Medicinal Uses7. Biotechnology for Guar Gum Modification; 8. Summary and Future Prospects; References; II. Effective Management of Resources (Nutrients and Water) and Crop Modelling; 4 Nitrogen Use as a Component of Sustainable Crop Systems; 1. Introduction; 2. Principles of Crop Sustainability in Rainfed Farming; 2.1 Nitrogen Use Efficiency (NUE); 2.2 Water-N Relationship; 2.3 Crop Rotations; 2.4 Fertilization to Optimize Yields; 2.5 No-Tillage Systems; 3. Improving Nue and On-Site N Management; 3.1 Pre- and Post-Anthesis Water Use and N Uptake; 3.2 Agronomic Strategies to Improve NUE 3.2.1 Source and Method of N Application3.2.2 Amount of N; 3.2.3 In-Season Application of N; 3.2.4 N Management in No-Tillage Systems; 4. Targeting Crop Sustainability; Acknowledgement; References; 5 Potential of Management Practices and Amendments for Preventing Nutrient Deficiencies in Field Crops under Organic Croppi ...; 1. Introduction; 2. Management Practices; 2.1 Crop Diversification/Rotation; 2.1.1 Legumes in Crop Rotation; 2.1.2 Deep-rooted and Shallow-Rooted Crops in Rotation; 2.2 Crop Species/Cultivars; 2.3 Crop Residue Return; 2.4 Intercropping Non-Legumes with Legumes 2.5 Mixed Farming (Dairy, Beef Cattle or Swine, and Cropping) Systems | 
