Abstract Reducing the use of synthetic inputs by shifting to alternative practices is becoming a growing priority in the agricultural sector. This study aims to understand how farmers manage this shift on diversified horticultural farms. The implementation of alternative practices at the crop level was analyzed on 28 farms on La Reunion Island (France). The surveys conducted combined interviews with farmers and the use of a dedicated indicator. Implementation of alternative practices depends on (i) the specificities of each production case (PC) defined as the combination of a crop with its biological features, a production mode and an economic environment (available technical support and market specifications), and (ii) links between PC within a farm. Five clusters of PC were identified based on their specificities. Links between PC take the form of competition over farm resources or, conversely, exchanges of biomass, inputs, equipment and skills acquired on each PC. These results provide an analytical framework to help advisors better support the diversity of farm involvement in shifting from synthetic inputs to alternative practices.

中文翻译：

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在多样化农业系统中从合成投入转向替代做法的作物驱动因素

摘要 通过转向替代做法来减少合成投入的使用正成为农业部门日益重视的问题。本研究旨在了解农民如何应对多样化园艺农场的这种转变。对拉留尼汪岛（法国）的 28 个农场在作物层面实施替代做法进行了分析。调查结合了对农民的访谈和使用专门的指标。替代做法的实施取决于 (i) 每个生产案例 (PC) 的特殊性，定义为作物与其生物学特征、生产模式和经济环境（可用的技术支持和市场规范）的组合，以及 (ii)农场内 PC 之间的链接。根据它们的特性确定了五个 PC 集群。PC 之间的联系采取对农场资源的竞争形式，或者相反，交换在每台 PC 上获得的生物量、投入、设备和技能。这些结果提供了一个分析框架，以帮助顾问更好地支持农场参与从合成投入转向替代实践的多样性。