Elaboration d'un guide méthodologique pour la co-conception de systèmes de culture afin de gérer durablement la flore adventice.

A new paradigm is needed for long-term weed management to shift from a tactical, one-off vision to a systemic, multi-year one. This transition requires the mobilization of various methodological frameworks and specific tools to support agricultural stakeholders, including farmers, in their changes of practice. A methodological guide has been developed to support the implementation of changes in weed management practices over the long term. The guide is based on different experiences of implementing a co-design approach for cropping systems, using various expert models. It is intended for advisors, organizers and experimenters wishing to rethink their cropping systems. It describes the entire method, the tools used and the main associated knowledge required for the process. It is unique in that it offers different versions of the approach, to suit the different situations of future users: Expert, Intermediate and Fast. The main stages in the construction of the guide are presented, along with thoughts on how it will be disseminated and how it will be used.