Part of a monograph by the first author. Unpublished work on traditional families in Paraíba, case report. Addresses issues related to the selection techniques applied by Paraíba farmers. comprises a set of techniques for cultivating a concentric circular vegetable garden system, which combines animal husbandry with plant production and uses inputs from the property in order to preserve soil and water quality, as well as ensuring food security for the families that participate in it.