This study aims to improve the performance of the hydroponic evapotranspiration irrigation system in the cultivation of green lettuce (Lactuca sativa) with the addition of an stirrer. This research was carried out from October 2022 to February 2023 at the Plant House of the Faculty of Agriculture, Sriwijaya University, Jalan Anyeb, Bukit Lama, Ilir Barat 1 District, Palembang City. The research…