The purpose of the project is to produce reliable emission factors for storage of poultry manure regarding methane and nitrous oxide emissions.
This project will focus on methane and nitrous oxide emissions from laying hens and the project is a supplement to an FoU project funded by the Swedish Board of Agriculture (referred to as FoU-SJV). In FoU-SJV, ammonia from poultry manure will be studied in a field study and in connection with this, this project also wants to measure methane and nitrous oxide emissions. The project will focus on differences in emissions when the chicken manure has different ts-content and if it is covered or not covered with a roof. In this project, we also want to use measured values from the experiments to calculate farm-specific values for the environmental and climate impact from laying hen manure storage. To get as farm-specific values as possible, 3 manure storages will be inventoried more deeply with a focus on the dynamics of the manure layer.