Location: Northwest Sustainable Agroecosystems Research
Project Number: 2090-11000-010-031-A
Project Type: Cooperative Agreement
Start Date: Sep 1, 2024
End Date: Aug 31, 2028
Objective:
Provide greenhouse gas (GHG) emissions information, with a focus on nitrous oxide emissions, for conservation practices including compost application, enhanced efficiency fertilizers, and conservation tillage, in the dryland Pacific Northwest. Support the Inflation Reduction Greenhouse Gas Quantification Effort Action Area #2.
Approach:
Employ automated soil chambers to continuously monitor N2O and CO2 emissions from alternative N-management strategies in winter wheat; comparisons include fall N application, fall N application plus nitrification inhibitor, split fall and spring application, compost application, and an unfertilized control. Measure N2O fluxes using a flux gradient approach in a dryland winter wheat-based cropping system rotation, in paired catchments that are respectively under no-till and conventional tillage practices. Employ automated chambers near the catchment drainage to evaluate edge-of-field GHG emissions under no-till and conventional tillage practices.
