Willow woodchip incorporation moderates soil carbon and nitrogen losses in a potato production system in Atlantic Canada

Abstract Maintaining soil organic carbon (SOC) in intensively managed potato systems is challenging due to frequent tillage and low residue return. A field experiment was conducted from 2019 to 2024 at the Agriculture and Agri-Food Canada Fredericton Research and Development Centre, New Brunswick, Canada, to evaluate the effects of willow (Salix spp.) woodchip incorporation on SOC, soil organic nitrogen (SON), and chemical soil properties. Willow chips harvested from a local plantation, chips we