This collection features four peer-reviewed literature reviews on soil health indicators. The first chapter describes indicators and frameworks for soil health currently in use. It evaluates the principles underpinning current approaches to monitoring soil quality/health and shows these principles have been applied in the development of a practical soil health toolkit for use by UK farmers. The second chapter reviews the range of physical, chemical and biological indicators of soil health and how they can be used in practice. It focusses on measuring soil health in organic vegetable cultivation and, in particular, ways of measuring the effects of adding organic amendments to improve soil health. The third chapter discusses key issues in soil organic carbon (SOM) modelling and the development of increasingly sophisticated, dynamic SOM models. It looks at the role of SOM models in improving soil health monitoring and developing decision support tools for farmers The final chapter reviews current challenges in collecting more systematic and reliable data on earthworm communities, including issues in identifying different earthworm groups. It includes a case study on developing a robust method for accurate measurement of earthworm communities in soil in assessing and improving soil health.

"Improving organic crop production provides a valuable resource for the current 'state of the art' on understanding mechanisms in these systems that are both similar and different from those in conventional systems....The book is especially recommended for libraries and other places that will provide access to large numbers of interested people, and as it gives a valuable overview on current organic farming to graduate students and others in academia." review by Professor Charles Francis in Agronomy Journal Global sales of organic products have grown significantly, yet organic farming remains a small percentage of overall agricultural production with lower yields than conventional methods. Organic crop cultivation thus faces a range of challenges if it is to grow significantly. This volume reviews the wealth of research addressing these challenges. Part 1 reviews developments in improving cultivation across the value chain, from breeding more robust, low input varieties to ways of maintaining soil health and improving crop nutrition. Part 2 discusses the key topic of pests and diseases with reviews of integrated pest and weed management as well as organic plant protection products. Part 3 covers ways of monitoring the environmental impact of organic farming whilst the final part of the book discusses ways of supporting organic cultivation in the developing world. With its distinguished editor and an international team of expert authors, this will be a standard reference for all those interested in understanding, improving and promoting organic farming.