Characterization of the phytosanitary practices and their drivers on a sample of farmers from Ravine du Pont watershed area in Reunion Island. Highlighting correlations between practices, their variability and the drivers impacting management choices

Castellani Julien. 2020. Characterization of the phytosanitary practices and their drivers on a sample of farmers from Ravine du Pont watershed area in Reunion Island. Highlighting correlations between practices, their variability and the drivers impacting management choices. Montpellier : AgroParisTech, 50 p. Master Thesis : Climate Land Use and Ecosystem Services : AgroParisTech

Encadrement : Mottes, Charles ; Darnaudery, Marie

Résumé : In Reunion Island, a tropical region, the climate is particularly suitable for a large diversity of crops, but also for the development of the associated pests and weeds. This is why, within the framework of the COSAQ project (COnception de Systèmes Alimentaire de Qualité), CIRAD and its partners aim to understand the phytosanitary practices implemented by farmers on watersheds that are at stake for water quality in order to support dynamics of agro-ecological transition on such stake area. To this end I built a framework integrating major components: practices, internal and external drivers, learning process and networking. All these elements allow to characterize the farmer's decision-making process. Using this framework, 21 farmers from the Ravine du Pont watershed were met and surveyed. Their phytosanitary practices management as well as the drivers influencing them were characterized and analyzed both separately and conjointly using basic mathematical analysis and then confirmed by statistical MCA tool. Results show that 19 out of 21 farmers used phytosanitary products to control pests or weeds. Three major types of practices could be clustered: organic, agroecological and conventional. The first never uses chemical phytosanitary products, while the two others do. Conventional have a systematic preventive use while the agroecological cluster have a more reasoned approach and try to mobilize alternative practices such as manual weeding. These clusters were well-segregated by drivers associated with financial difficulties and ecological consideration. This typology strongly highlights the use of phytosanitary products in conventional and agroecological clusters. Moreover, statistical analysis allow to reveal dispersion modalities of individuals through their driving factors. Finally, the following study is the starting point for supporting farmers of Ravine du Pont watershed in the adoption of phytosanitary practices less impacting on water quality. Results obtained should therefore be used to adapt innovation support within each group and cross group.

Auteurs et affiliations

• Castellani Julien, AgroParisTech (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/597343/)

Métriques

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