A research project on improved fallows examined how short-term rotations of selected perennial tree and shrub species impact cereal yields and soil quality in subsistence maize cropping systems. The effects of improved fallows on maize yields were significant when combining a tree species (Gliricidia) and a nitrogen-fixing legume (Stylosanthes). Read more
This report highlights some of the opportunities and challenges of establishing an organic farming movement that “can increase food security, reduce poverty and protect environmental resources” in the Southern hemisphere. Even though the report asserts that government policies are still needed to encourage the extension of organic farming, several positive trends are identified through a number of worldwide case studies.