Research Documents Benefits of Poultry Litter Application

A study by Mississippi scientists that was published in Soil Science Society of America Journal focused on documenting the impacts of poultry litter application on crop fields. After five years of soil treatments that applied either poultry litter or commercial chemical fertilizers, researchers grew soybeans for three years. They found that soils amended with poultry litter were less compacted and held significantly more water. However, soil carbon content didn’t change much, as the hot and humid region caused carbon to evaporate as carbon dioxide. The soybean yields from the fields amended with poultry litter were higher than those that received other treatments. “These results are useful for development of management practices that improve soil health and function,” noted lead author Gary Feng, a USDA soil scientist.