Climate Change and Management Impacts on Soybean N Fixation, Soil N Mineralization, N₂O Emissions, and Seed Yield.

ABSTRACT: Limited knowledge about how nitrogen (N) dynamics are affected by climate change, weather variability, and crop management is a major barrier to improving the productivity and environmental performance of soybean-based cropping systems. To fill this knowledge gap, we created a systems understanding of agroecosystem N dynamics and quantified the impact of controllable (management) and uncontrollable (weather, climate) factors on N fluxes and soybean yields. We performed a simulation experiment across 10 soybean production environments in the United States using the Agricultural Production Systems sIMulator (APSIM) model and future climate projections from five global circulation models. Climate change (2020-2080) increased N mineralization (24%) and N₂O emissions (19%) but decrea

SUBMITTER: Elli EF 

PROVIDER: S-EPMC9094616 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature