Organic farming is a way to address environmental issues. In Kenya, organic production for domestic markets based on local certification represents a solution to both economic and environmental issues. We propose to address this latter issue. Indeed, no quantitative studies have been dedicated to these systems’ impacts on the environment. However, their theoretical benefits can be weakened, first by their functioning based on internal control and indirect external control, and second by the risk of self‐selection since farmers using low levels of synthetic inputs have less effort to make in order to enter in conversion process. Thanks to unique farm‐level survey data along with the propensity score matching method, we assess the producer‐level effects of organic certification for fruits and vegetables on agro‐ecological practices. We show that conversion and certification are associated with organic farming techniques and positive perceptions of different statements about environmental values. However, we do not notice any additional effects of certification compared to conversion alone. Although economic issues are important, we focus on environmental issues that appear as important for smallholders. In a context with no public regulation, conversion‐only farmers and locally certified farmers could be a lever for a more sustainable agriculture.

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肯尼亚当地市场的有机农业：转化和认证对环境效益的贡献

有机农业是解决环境问题的一种方式。在肯尼亚，基于本地认证的面向国内市场的有机生产代表了解决经济和环境问题的解决方案。我们建议解决后一个问题。实际上，还没有定量研究致力于这些系统对环境的影响。但是，他们的理论收益可能会受到削弱，首先是由于其基于内部控制和间接外部控制的功能，其次是由于自我选择的风险，因为使用低水平合成投入的农民为进入转化而付出的努力更少处理。得益于独特的农场水平调查数据以及倾向评分匹配方法，我们评估了果蔬有机认证对农业生态实践的生产者水平影响。我们证明，转换和认证与有机农业技术以及对有关环境价值的不同陈述的积极看法有关。但是，与单独转换相比，我们没有注意到认证的任何其他影响。尽管经济问题很重要，但我们专注于对小农户而言似乎很重要的环境问题。在没有公共法规的情况下，仅依靠转化的农民和经当地认证的农民可以成为实现更可持续农业的杠杆。我们专注于对小农户而言重要的环境问题。在没有公共法规的情况下，仅依靠转化的农民和经当地认证的农民可以成为实现更可持续农业的杠杆。我们专注于对小农户而言重要的环境问题。在没有公共法规的情况下，仅依靠转化的农民和经当地认证的农民可以成为实现更可持续农业的杠杆。