Opportunities to reduce nitrous oxide emissions from horticultural production systems in Canada

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dc.contributor.authorChahal, Inderjot
dc.contributor.authorBaral, Khagendra
dc.contributor.authorCongreves, Kate A.
dc.contributor.authorVan Eerd, Laura L.
dc.contributor.authorWagner-Riddle, Claudia
dc.date.accessioned2022-01-21T14:12:54Z
dc.date.available2022-01-21T14:12:54Z
dc.date.issued2021-08-03
dc.descriptionPublication history: Accepted - 26 July 2021; Published - 3 August 2021.en_US
dc.description.abstractHorticultural systems, specifically vegetable production systems, are considered intensive agricultural systems as they are characterized by high nitrogen (N) fertilizer application rate, frequent tillage, and irrigation operations. Accordingly, horticultural production in temperate climates is prone to N losses — mainly during post-harvest (during fall and winter) or pre-plant (spring) periods — such as N2O emissions and nitrate leaching. The risk for N losses is linked to low crop N use efficiency (NUE) combined with a narrow C:N and high N content of crop residues. Here we reviewed the studies conducted in Canada and similar climates to better understand the risk of N2O emission and potential agronomic management strategies to reduce N2O emissions from horticultural systems. Current knowledge on N2O emissions from horticultural systems indicate that increasing crop NUE, modifying the amount, type, time, and rate of N fertilizer inputs, and adopting cover crops in crop rotations are some of the effective approaches to decrease N2O emissions. However, there is uncertainty related to the efficiency of the existing N2O mitigation strategies due to the complex interactions between the factors (soil characteristics, type of plant species, climatic conditions, and soil microbial activity) responsible for N2O production from soil. Little research on N2O emissions from Canadian horticultural systems limits our ability to understand and manage the soil N2O production processes to mitigate the risk of N2O emissions. Thus, continuing to expand this line of research will help to advance the sustainability of Canadian horticultural cropping systems.en_US
dc.description.sponsorshipFunding provided by the NSERC CREATE Climate-Smart Soils and Mitacs Elevate programs.en_US
dc.identifierhttp://hdl.handle.net/20.500.12518/391
dc.identifier.citationChahal, I., Baral, K., Congreves, K., Van Eerd, L. and Wagner-Riddle, C. (2021) ‘Opportunities to Reduce Nitrous Oxide Emissions from Horticultural Production Systems in Canada’, Canadian Journal of Plant Science. Canadian Science Publishing. doi:10.1139/cjps-2021-0107.en_US
dc.identifier.issn0008-4220
dc.identifier.issn1918-1833 (electronic)
dc.identifier.urihttps://doi.org/10.1139/cjps-2021-0107
dc.language.isoenen_US
dc.publisherCanadian Science Publishingen_US
dc.rights© 2021 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.en_US
dc.subjectgreenhouse gas emissionsen_US
dc.subjectnitrogen use efficiencyen_US
dc.subjectvegetableen_US
dc.subjectfruiten_US
dc.subjecttemperate climateen_US
dc.titleOpportunities to reduce nitrous oxide emissions from horticultural production systems in Canadaen_US
dc.typeArticleen_US
dcterms.dateAccepted2021-07-26
dcterms.dateSubmitted2021-04-30

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