Noura Ziadi, Ph.D.

Image Noura Ziadi
Research scientist

My research program focuses on soil fertility and plant nutrition. More specifically, I’m conducting research to better understand nutrient cycling under different agro-ecosystems. I’m developing  technologies, methods, and knowledge for better management of mineral fertilizers by increasing their efficiency of use while reducing their negative environmental impacts. I developed and validated models for phosphorus and nitrogen diagnosis in corn, wheat, potatoes, and timothy production and developed new technologies to ensure effective management of industrial wastes (paper mill biosolids) and biochar. 

Current research and/or projects

  • Soil phosphorus modelling and transformation
  • Development of soil analysis, including for soil phosphorus and nitrogen
  • Use of infrared for soil analysis
  • Plant- and soil- based diagnostic tools for efficient nitrogen and phosphorus management
  • Development of agricultural uses for paper industry residues and biochar

Research and/or project statements

  • Soil fertility and plant mineral nutrition
  • Nutrient management
  • Soil phosphorus and nitrogen cycle
  • Improving use of nitrogen and phosphate fertilizers
  • Soil analysis methods

Professional activities / interests

  • President-Elect, President, Past President, Canadian Society of Soil Science (2017-2019);
  • Associate editor for Agronomy Journal (2012-214);
  • Associate editor for the Canadian Journal of Soil Science (2011-) ;
  • Member of the Canadian society of Soil Science CSSS, Centre SEVE, American society of agronomy and Soil science society of America.

Education and awards

  • Ph.D., Crop Science, Laval university, Quebec, Canada, 1999
  • M.Sc., Crop Science, Laval university, Quebec, Canada, 1994
  • Certificate: International course of specialization in cereal, Reggio Emilia, Italy, 1992;
  • B.Sc., Agronomy, École supérieure des grandes cultures, Tunisia,  1986
  • Best Associate Editor- Canadian Journal of soil science ( 2017);
  • 2015 Fellow from the Canadian Society of soil science;
  • 2014 Nominated for the award “Femme de Merite 2014 de YWCA, Quebec” under science and technology section;  2014.
  •  Award of excellence of outstanding paper from the Canadian J. of Plant science; 2009
  • Award of excellence of outstanding paper from the American society of weed science. February 2009.
  • Queen’s Jubilee Medal from Agriculture and Agri-Food Canada, December 2002.
  • Award of the best student poster presented during the meeting of the Canadian Society of Soil science in 1999.
  • Scholarship from the Canadian Society of Soil Science (Student Travel Award for 1998).
  • Scholarship of excellence from the “Formation des Chercheurs et l’Aide à la Recherche (FCAR) ’’ (Ph.D.; 1995 and 1996).
  • Scholarship of excellence from the ‘’Fondation de l'Université Laval’’ (Ph.D.; 1994).
  • Award of the best student poster presented during the meeting of the “Association Québecoise des spécialistes en science du sol” in 1996 

International experience and/or work

Collaboration with France (INRA Bordeaux and Toulouse, U. De Bordeaux), China, Switzerland, Finland, Tunisia and Saudi Arabia;

Training of post-doctoral fellows and graduate students (+40).

Key publications

  1. Abstract in The third Global Soil Biodiversity Conference 2023

    2023 - View publication details

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

    2023 - View publication details

  3. Rupngam et al. 2022. The effect of waterlogging on phosphorus solubility caused by redox reaction in wetland soil of the Fraser Valley in British Columbia. CSSS-ASSW 2022, Soil Science for Sustainable Development May 23-27, 2022. Edmonton

    2022 - 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. Nyiraneza, J., Bélanger, G., Benjannet, R., Ziadi, N., Cambouris, A., Fuller, K., Hann, S. (2021). Critical phosphorus dilution curve and the phosphorus-nitrogen relationship in potato. European Journal of Agronomy, [online] 123

    2021 - View publication details

  7. 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

  8. Parent, S.É., Lafond, J., Paré, M.C., Parent, L.E., Ziadi, N. (2020). Conditioning machine learning models to adjust lowbush blueberry crop management to the local agroecosystem. Plants, [online] 9(10), 1-21.

    2020 - View publication details

  9. 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

  10. Benjannet, R., Nyiraneza, J., Khiari, L., Cambouris, A., Fuller, K., Hann, S., Ziadi, N. (2020). Potato response to struvite compared with conventional phosphorus fertilizer in Eastern Canada. Agronomy Journal, [online] 112(2), 1360-1376.

    2020 - View publication details

  11. Wen, G., Cambouris, A.N., Ziadi, N., Bertrand, A., Khelifi, M. (2019). Nitrogen Fertilization Effects on the Composition of Foliar Amino Acids of Russet Burbank Potato. American Journal of Potato Research, [online] 96(6), 541-551.

    2019 - View publication details

  12. Gagnon, B., Ziadi, N., Bélanger, G., Tremblay, G.F., Parent, G. (2019). Urea-based fertilizer as an efficient nitrogen source in perennial cool-grass forage production. Agronomy Journal, [online] 111(2), 867-880.

    2019 - View publication details

  13. Abdi, D., Cade-Menun, B.J., Ziadi, N., Shi, Y., Bélanger, G., Lajeunesse, J., Lafond, J. (2019). A31 P-NMR spectroscopic study of phosphorus forms in two phosphorus-fertilized grassland soils in Eastern Canada. Canadian Journal of Soil Science, [online] 99(2), 161-172.

    2019 - View publication details

  14. Lafond, J. et Ziadi, N. 2018. Phosphorus mobility in acidic wild blueberry soils in Québec, Canada. Affiche présentée à la NABREW, 13-14 août, Orono, Maine, USA .

    2018 - View publication details

  15. Lafond, J. et Ziadi, N. 2018. Mouvement de l’azote et du phosphore dans les sols de bleuetières. Conférence présentée au Congrès annuel de l’AQSSS, 12-15 juin, Québec, QC.

    2018 - View publication details

  16. Canadian Society of Soil Science Annual Meeting Niagara Falls 2018/06/10 - 2018/06/14

    2018 - View publication details

  17. 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

  18. Faubert, P., Lemay-Bélisle, C., Bertrand, N., Bouchard, S., Chantigny, M.H., Durocher, S., Paré, M.C., Rochette, P., Tremblay, P., Ziadi, N., Villeneuve, C. (2017). Greenhouse gas emissions following land application of pulp and paper mill sludge on a clay loam soil. Agriculture, Ecosystems and Environment, [online] 250 102-112.

    2017 - View publication details

  19. Cambouris, A.N., Messiga, A.J., Ziadi, N., Perron, I., Morel, C. (2017). Decimetric-scale two-dimensional distribution of soil phosphorus after 20 years of tillage management and maintenance phosphorus fertilization, 81(6), 1606-1614.

    2017 - View publication details

  20. Claessens, A., F. Langevin, I. Royer, A. Cambouris, D. Angers, N. Ziadi, and A. Bertrand. 2017.
    Method for screening Cu, Zn or Pb phytotoxicity on switchgrass and reed canarygrass. ASA-CSSA-SSSA 2017 Tampa 2017/10/22 - 2017/10/25

    2017 - View publication details

Research facility

2560 Hochelaga Boulevard
Québec, QC G1V 2J3


2005-present, Adjunct Professor, Laval University, Quebec.

2012-present, Adjunct Professor, Graduate University Chinese Academy of Science, Beijing, China.

2016-present, Adjunct Professor, Université du Québec en Abitibi-Témiscamingue.



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