Economic evaluation of alfalfa (Medicago sativa L.) forage production following the application of nano-fertilizers and bio-insecticides. Bulgarian Journal of Agricultural Economics and Management, [S. l.], v. 71, n. 2, p. 20–26, 2026. DOI: 10.61308/QYYI2540. Disponível em: https://agriacad.eu/ojs/index.php/bjaem/article/view/6921.. Acesso em: 16 jul. 2026.