BARBOSA, Graziela Moraes de Cesare; TAVARES FILHO, João. Agricultural utilization of sewage sludge: effect on the chemical and physical properties of soils and on the productivity and recovery of degraded areas. Semina: Ciências Agrárias, [S. l.], v. 27, n. 4, p. 565–580, 2006. DOI: 10.5433/1679-0359.2006v27n4p565. Disponível em: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2534. Acesso em: 24 mar. 2026.