Apprentissages des agriculteurs vers la réduction d’intrants en grandes cultures : Cas de la Champagne Berrichonne de l’Indre dans les années 1985-2010.

Abstract : Taking into account farmers' experience is essential to develop “ecological intensification” of agriculture. This paradigm shift within agronomic knowledge production raises questions about farmers' learning processes.Based on interviews conducted in Champagne Berrichonne of Indre with twenty cereal growers, who have reduced the use of pesticides and nitrogen over the course of their professional career, this thesis provides evidence on : (i) the different trajectories adopted in changing farming practices in the area studied, (ii) the dynamics of knowledge during these trajectories and (iii) the diversity of the ways farmers learn about technical change. Our methodological approach, borrowing some concepts of “professional didactic” (a French field of psychology) enables us to analyze trajectories as a combination of phases of agronomic coherence, to identify key practices of these transitions, and to characterize learning styles according to the mobilization of other individuals, the farmer's experiences and their references of evaluation. The content of learning is addressed through an analysis of pragmatic judgments which proved to be partially different for each particular trajectory.On the agronomic front, our results offer new perspectives to deal which the dynamics of technical change in farming systems or to develop approaches for territorial diagnosis and farming system design. The identification of learning styles is an interesting perspective to deal with learning issues in work situations. Finally, in operational terms, this work provides useful tools for experimental work in innovative cropping systems, and more generally for agricultural advice.
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Emilia Chantre. Apprentissages des agriculteurs vers la réduction d’intrants en grandes cultures : Cas de la Champagne Berrichonne de l’Indre dans les années 1985-2010.. Sciences agricoles. AgroParisTech, 2011. Français. ⟨NNT : 2011AGPT0046⟩. ⟨pastel-01002797⟩

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