CH10 -Advances in the reduction of herbicide use in Conservation Agriculture systems
2025
Cordeau, Stéphane | Deytieux, Violaine | Guinet, Maé | Munier-Jolain, Nicolas | Adeux, Guillaume | Agroécologie [Dijon] ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université Bourgogne Europe (UBE) | Domaine expérimental d'Époisses - UE0115 U2E (DIJ EPOISSES) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | DEPHY Expe II project ABC “Agroécologie en Bourgogne et Région Centre” | Casdar RAID (Biological control of weeds) | Casdar Vancouver (Weeds management with cover crop) | Projet ECOPHYTO COSTRAA | Projet COPRAA | INRAE SumCrop ASPECT | INRAE | ANR-20-PCPA-0008,SPECIFICS,Sustainable Pest Control In Fabaceae-rich Innovative Cropping Systems(2020) | ANR-20-PCPA-0001,BE-CREATIVE,Built pEstiCide-free agRoecosystEms At TerrItory leVEl(2020) | ANR-15-IDEX-0003,BFC,ISITE " BFC(2015) | European Project: 101060430,HORIZON-CL6-2021-FARM2FORK-01,HORIZON-CL6-2021-FARM2FORK-01,ADOPT-IPM(2022) | European Project: 727321,H2020-SFS-2016-2017,H2020-SFS-2016-2,IWMPRAISE(2017)
International audience
Afficher plus [+] Moins [-]anglais. Conservation agriculture (CA) appears as a promising agricultural pathway to achieve multiperformance but is currently questioned due to its reliance on herbicides for weed management, especially glyphosate.<p>One limit in the development of CA-based agroecological cropping system less reliant on herbicide use is the strict definition of CA based on technical means (i.e. the three principles) rather than targeted objectives. In this chapter, we mobilize research carried out on experimental stations (e.g. CA-SYS platform) and farmer networks (e.g. French DEPHY-farm network) to synthesize knowledge on how pesticide-free no-till agriculture could be achieved. We provide insights on the multiperformance of pesticide-free and nature-based CA systems compared to reference CA systems. Designing cover crops to ensure growth in a context of unpredictable weather conditions and facilitate mechanical termination, and ensuring crop establishment in absence of tillage and herbicides represent major research avenues for the development of pesticide-free CA systems.</p>
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