Identifying the mechanisms responsible for the greater than expected residue-induced N20 emissions from canola and flax

Researcher: Richard Farrell, J.D. Knight, B.L. Helgason, University of Saskatchewan, Saskatoon SK, and R.L. Lemke, Agriculture and Agri-Food Canada, Saskatoon SK

Project Code: ADF 2015.0083

Final Report: July 2019

Summary: The carbon intensity of commodities is an important marketing consideration for many crops including canola. Research was conducted to identify the factors contributing to previous observations that nitrous oxide (N2O) emissions from canola and flax residues were greater than those from wheat residues. The overall results from this study show that there is there is significant potential for canola residues to enhance N2O emissions relative to those associated with wheat, flax, and pea residues. The project has also identified factors that influence N2O emissions during residue decomposition, which growers could address through potential mitigation strategies incorporated into Best Management Practices.

Click the links below to download a short version of the report, the full detailed long version of the report, or the related Canola Digest PDF.

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