Despite the acknowledged benefits of crop diversification, the transition towards more diversified cropping systems needs to be supported, mainly due to socio-technical lock-ins favoring major dominant crop species. This calls for the development of new approaches to support the design of locally tailored diversified cropping systems. This paper aims to present an original participatory and multi-actor design approach, developed to support the introduction of camelina (Camelina sativa) into the cropping systems of northern France and to provide some insights about the characteristics, the specificities, and the limits of this approach to support its use and adaptation to other contexts. For 3 years, and in connection with the development of an oilseed biorefinery, we gathered a variety of actors (farmers, advisors, engineers in agronomy, researchers, and industrialists) to locally support the introduction of camelina in the cropping systems. First, we illustrate the diversity of the modalities that have been collectively imagined to introduce and manage camelina in the local cropping systems. Then, we describe the originality and the diversity of the knowledge produced on camelina, especially during the assessment of some of these modalities within on-farm experiments. Finally, drawing on concepts and theories from design sciences, we show that (i) the pre-existence of networks of actors, (ii) the rationale involvement of the actors, (iii) the implementation of a situated design process fueled by action and distributed among actors, (iv) the sharing and the circulation of knowledge among a diversity of actors involved in the production and use of the new crop, and (v) the implementation of an effective network management contributed to foster the three key elements that we identified as crucial to support crop diversification, namely, the production of actionable knowledge, the exploration of new ideas/concepts, and the active participation of a diversity of actors of the agri-food system.

尽管公认作物多样化的好处，但需要支持向更多样化的种植系统过渡，这主要是由于社会技术锁定有利于主要优势作物品种。这需要开发新的方法来支持设计适合当地的多样化种植系统。本文旨在提出一种原创的参与式和多参与者设计方法，该方法旨在支持引入亚麻荠 ( Camelina sativa )) 进入法国北部的种植系统，并提供一些关于这种方法的特征、特性和局限性的见解，以支持其在其他环境中的使用和适应。3 年来，为了开发油籽生物精炼厂，我们召集了各种参与者（农民、顾问、农学工程师、研究人员和实业家）在当地支持在种植系统中引入亚麻荠。首先，我们说明了共同想象的在当地种植系统中引入和管理亚麻荠的方式的多样性。然后，我们描述了在亚麻荠上产生的知识的独创性和多样性，特别是在农场实验中评估其中一些模式的过程中。最后，