Vicky Lévesque, Ph. D.

Image Vicky Lévesque
Research Scientist

Soil Health and Microbiome

Professional activities / interests

With the intention of improving degraded horticultural soils and agroecosystems and providing more ecosystem services, my research activities aim to:

  1. Improve our knowledge of management practices that influence physicochemical properties and microbial diversity as it relates to soil health;

  2. Use beneficial microorganisms as allies to reduce biotic and abiotic stresses in crops and to improve efficiency of nutrient and water utilization;

  3. Investigate innovative clean technologies such as biofumigation, anaerobic soil disinfestation and organic amendment of soil to optimize plant growth and productivity.

My research program contributes directly to three strategic objectives within the Horticulture and Biodiversity science strategies of the Science and Technology Branch of Agriculture and Agri-Food Canada. These are i) increasing agricultural productivity, ii) enhancing environmental performance and iii) improving attributes for non-food uses.

Education and awards

Ph.D. Agricultural Microbiology, Université Laval, QC, Canada, supervised by Dr Hani Antoun. Diploma sanctioned in May 2017. Thesis title: Biochar amendment: Effects on the activity and structure of microorganisms and on greenhouse tomato and sweet pepper yields.

M.Sc. Soils and Environment, Université Laval, QC, Canada, supervised by Dr Martine Dorais. Diploma sanctioned in October 2011. Thesis title: Potential of using artificial wetlands to treat tomato greenhouse effluents.

B. Sc Agronomy (Spec. Soil science), Université Laval, QC, Canada. Diploma sanctioned in May 2008.  

International experience and/or work

Visiting scholar at University of Illinois Urbana-Champaign (IL, United States). May to November 2011.

Key publications

  1. Abstract in the18th international RAMIRAN conference 2023

    2023 - View publication details

  2. Poster presented at The third Global Soil Biodiversity Conference in 2023.

    2023 - View publication details

  3. Abstract in The third Global Soil Biodiversity Conference 2023

    2023 - View publication details

  4. Biochar in temperate soils: opportunities and challenges

    2021 - View publication details

  5. Marouani, E., Ziadi, N., Lévesque, V., Kolsi Benzina, N., Bouslimi, B., Koubaa, A. (2021). Mitigation of CO2, CH4 and N2O from Acidic Clayey Soil Amended with Fertilizer Pellets Based on Alkaline Organic Residues. Waste Biomass Valorization, [online] 12(7), 3813-3827.

    2021 - View publication details

  6. Lévesque, V., Rochette, P., Hogue, R., Jeanne, T., Ziadi, N., Chantigny, M.H., Dorais, M., Antoun, H. (2020). Greenhouse gas emissions and soil bacterial community as affected by biochar amendments after periodic mineral fertilizer applications. Biology and Fertility of Soils, [online] 56(7), 907-925.

    2020 - View publication details

  7. Lévesque, V., Jeanne, T., Dorais, M., Ziadi, N., Hogue, R., Antoun, H. (2020). Biochars improve tomato and sweet pepper performance and shift bacterial composition in a peat-based growing medium. Applied Soil Ecology, [online] 153

    2020 - View publication details

  8. Bertrand, A., Gatzke, C., Bipfubusa, M., Lévesque, V., Chalifour, F.P., Claessens, A., Rocher, S., Tremblay, G.F., Beauchamp, C.J. (2020). Physiological and biochemical responses to salt stress of alfalfa populations selected for salinity tolerance and grown in symbiosis with salt-tolerant rhizobium. Agronomy, [online] 10(4),

    2020 - View publication details

  9. Lévesque, V., Rochette, P., Ziadi, N., Dorais, M., Antoun, H. (2018). Mitigation of CO2, CH4 and N2O from a fertigated horticultural growing medium amended with biochars and a compost. Applied Soil Ecology, [online] 126 129-139.

    2018 - View publication details

  10. St. Luce, M., Ziadi, N., Gagnon, B., Lévesque, V. (2017). Prediction of total carbon, total nitrogen, and pH of organic materials using visible near-infrared reflectance spectroscopy. Canadian Journal of Soil Science, [online] 98(1), 175-179.

    2017 - View publication details

Research facility

32 Main Street
Kentville, NS B4N 1J5


CSSS, Canadian Society of Soil Science

ASM, American Society for Microbiology