Composted and formulated poultry litters can be used as organic fertilizer for value added soybean crops such as edamame to maintain soil productivity and partially restore nutrients removed at harvest. However, applications may be limited by lack of understanding of properties and behavior in soil and impacts on plant and seed quality components in addition to yield. Greenhouse and field experiments by Blair et al. show that composted poultry litter is better for edamame production than formulated litters because composted poultry added a more stable organic substrate to soil.
