Agricultural production data for multiple crops is available as open data; However, to discover information in the data it is necessary to consider methodologies, methods and tools that allow guiding the research work to specifically explore agricultural data. This article aims to propose an adaptation of the CRISP-DM and OSEMN methodologies to the agricultural context, which helps to study any crop. In addition, to apply the proposed methodology to the agricultural production of an endemic Mexican product that is the marigold flower, Tagetes erecta.