Changes in nutrient levels in hydroponic solution of baby spinach (Spinacia oleracea L.), for future application in aquaponics. Orinoquia, [S. l.], v. 23, n. 1, p. 73–84, 2019. DOI: 10.22579/20112629.544. Disponível em: https://orinoquia.desarrollo-ojs1.metadatos.org/index.php/orinoquia/article/view/544. Acesso em: 15 apr. 2026.