SAIJO, Saijo. Improvement of sandy soil productivity with chicken manure treatment and NPK fertilizer for eggplant plants. Environmental and Agriculture Management, [S. l.], v. 1, n. 1, p. 41–50, 2024. DOI: 10.31102/eam.1.1.41-50. Disponível em: https://journal.uim.ac.id/index.php/eam/article/view/2636. Acesso em: 3 feb. 2026.