摘要：This article analyzes the importance of interdisciplinarity in rural extension, highlighting the interaction with the human sciences, especially psychosociology. The interdisciplinary approach is presented by the authors as an epistemological requirement critical and political. The psychosociology aproach is underpinned by the realization that the phenomenon of subjectivity can not be absent from the knowledge and practices involving human and social relationships. This is an essay in which the rural extension appears as a privileged place for interdisciplinary research, in that it brings together action and reflection on well-defined contexts and that incorporates various disciplines in the composition of its current corpus - the paradigmatic disputes ensued possibilities for original compositions, sometimes rivals, but always consistent with the scenario of the new diplomacy required by postmodernity. The first part of reflection, being a theoreticalone, relates to the second part that brings together fragments of a field study conducted in the Brazilian Amazon in which experiences of disciplinary intersection have been done.
