Crop residues contribute minimally to spring-thaw nitrous oxide emissions under contrasting tillage and crop rotations

• Published in: Soil biology & biochemistry Vol. 152; p. 108057
• Main Authors: Ferrari Machado, Pedro Vitor, Farrell, Richard E., Bell, Gordon, Taveira, Caio J., Congreves, Katelyn A., Voroney, R. Paul, Deen, William, Wagner-Riddle, Claudia
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2021
• Subjects: 15N; 15N2O; Annual crops; chamber Measurements; Cover crop; Emission factors; Greenhouse gases; N2O; No-till; Soil freeze-thaw cycles; Emission factors; chamber Measurements; No-till; Soil freeze-thaw cycles; Cover crop; Annual crops; 15N; N2O; 15N2O; Greenhouse gases

Crop residues are sources of carbon and nitrogen (N) after harvest, releasing inorganic N through mineralization or protecting soil N through immobilization. Inorganic N controls nitrous oxide (N2O) emissions, a potent greenhouse gas (GHG) from agriculture. Hence, crop residues are accounted for as...