Pica had once an extensive irrigation system of puquios, locally known as "socavones". In 1918 geologist Juan Brüggen mentioned the existence of 23 "socavones" in the Pica oasis, yet these have since then been abandoned due to economic and social changes. The socavones transported water from the Pica Aquifer to the oasis. As in many oases one of the biggest challenges for farmers in Pica is the scarcity of water. Most of the farmers in Pica own less than five hectares, and while this size hampers commercialization of products farmers have responded by organising themselves in cooperatives. Six producers, compromising one fifth of the agricultural output of the oasis, are organised in Oasis Pica Coop. This organisation was as of 2019 working to certify products as organic and enforce the appellation control for Limón de Pica. Limón de Pica have had an appellation since 2010.