This collection features four peer-reviewed literature reviews on cover crops in agriculture. The first chapter describes the contribution of cover crops to improving soil health. The chapter reviews their key role e.g. supplying a food source for soil organisms, providing a source of carbon to help build soil organic matter, enhancing nutrient dynamics in the soil and improving soil structure. The second chapter considers recent research on the benefits of cover crops in organic cultivation in areas such as soil structure and erosion control as well as nutrient cycling. It also looks at the wider role of cover crops in control of weeds, diseases and pests, promoting biodiversity and reducing greenhouse gases (GHGs). The third chapter highlights the use of different cover crops species to promote live or dead soil mulch cover in Conservation Agriculture systems. It also reviews how cover crops effect aspects such as soil acidity and nutrient availability, soil physical and biological properties, soil nematode control, weed control and grain yield. The final chapter reviews the role of cover crops in weed control. Cover crops are important additions to crop rotations because they suppress weeds during rotational periods when crops are absent and provide ecosystem services that enhance soil quality and fertility.

"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.