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Cross-Effect Between Cover Crops and Glyphosate-Based Herbicide Application on Microbiote Communities in Field Crops Soils

Author

Listed:
  • Jérôme Bernier Brillon

    (GEOTOP, Research Centre in Earth System Dynamics, Institute of Environmental Sciences, University of Quebec at Montreal, 201, Avenue du Président-Kennedy Montréal, Québec, QC H2X 3Y7, Canada)

  • Marc Lucotte

    (GEOTOP, Research Centre in Earth System Dynamics, Institute of Environmental Sciences, University of Quebec at Montreal, 201, Avenue du Président-Kennedy Montréal, Québec, QC H2X 3Y7, Canada)

  • Blandine Giusti

    (GEOTOP, Research Centre in Earth System Dynamics, Institute of Environmental Sciences, University of Quebec at Montreal, 201, Avenue du Président-Kennedy Montréal, Québec, QC H2X 3Y7, Canada)

  • Gilles Tremblay

    (Quebec Ministry of Agriculture, Fisheries and Food (MAPAQ), 1355, Rue Daniel-Johnson Ouest, Bureau 3300, Saint-Hyacinthe, Québec, QC J2S 8W7, Canada)

  • Matthieu Moingt

    (GEOTOP, Research Centre in Earth System Dynamics, Institute of Environmental Sciences, University of Quebec at Montreal, 201, Avenue du Président-Kennedy Montréal, Québec, QC H2X 3Y7, Canada)

Abstract

This study investigates how cover crops (CC) and different application rates of glyphosate-based herbicide (GBH) may affect soil microbial communities. Our hypothesis was that the use of CC would promote the presence of certain microbial communities in soils and mitigate the potential impact of GBH on these communities. CC can promote biodiversity by increasing plant diversity in fields, while GBH may have non-target effects on species that utilize the shikimate pathway. Crop managements in an experimental field in Southern Québec (Canada) consisted in Glyphosate-based Herbicide (GBH) applications rates at 0.84, 1.67 and 3.33 L ha −1 in corn, soybean and wheat fields cultivated with Direct Seeding along with CC (DSCC) and at 3.33 L ha −1 in similar crops cultivated with direct seeding but without CC (DS). DSCC did not significantly impact microbial richness compared to DS, but did alter specific abundance among prokaryotes and eukaryotes. A permutational multivariate analysis revealed that the type of crop (soybean, wheat, maize) significantly influenced the composition of eukaryotic communities in 2018 and 2019, but not prokaryotic communities. Importantly, the study identifies a cross-effect between CC and GBH application rates suggesting that herbicide use in soybean plots can influence Anaeromyxobacter populations. Also, higher abundance of Enoplea and Maxilopoda were observed in plots with the lower application rate of GBH. Both eukaryotes group are known to be sensitive to crop management. These findings emphasize the need for a holistic approach to agricultural practices, considering the combined effects of both CC and GBH application rates on soil microbial health. Ultimately, the study calls for sustainable agricultural practices that preserve microbial diversity, which is essential for maintaining ecosystem services and soil health.

Suggested Citation

  • Jérôme Bernier Brillon & Marc Lucotte & Blandine Giusti & Gilles Tremblay & Matthieu Moingt, 2025. "Cross-Effect Between Cover Crops and Glyphosate-Based Herbicide Application on Microbiote Communities in Field Crops Soils," Agriculture, MDPI, vol. 15(4), pages 1-24, February.
    • Handle: RePEc:gam:jagris:v:15:y:2025:i:4:p:432-:d:1594776
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    References listed on IDEAS

    as
    1. Thomas I. Wilkes & Douglas J. Warner & Keith G. Davies & Veronica Edmonds-Brown, 2020. "Tillage, Glyphosate and Beneficial Arbuscular Mycorrhizal Fungi: Optimising Crop Management for Plant–Fungal Symbiosis," Agriculture, MDPI, vol. 10(11), pages 1-14, November.
    2. Jérôme Bernier Brillon & Marc Lucotte & Ariane Bernier & Myriam Fontaine & Matthieu Moingt, 2024. "Using Cover Crops as Means of Controlling Weeds and Reducing the Applied Quantity of Glyphosate-Based Herbicide in No-Till Glyphosate Tolerant Soybean and Corn," Agriculture, MDPI, vol. 14(5), pages 1-15, April.
    3. de Moura, Maíse Soares & Silva, Bruno Montoani & Mota, Paula Karen & Borghi, Emerson & Resende, Alvaro Vilela de & Acuña-Guzman, Salvador Francisco & Araújo, Gabriela Soares Santos & da Silva, Lucas d, 2021. "Soil management and diverse crop rotation can mitigate early-stage no-till compaction and improve least limiting water range in a Ferralsol," Agricultural Water Management, Elsevier, vol. 243(C).
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