GUARÇONI M., André. Soil fertility characteristics as affected by close spacing of conilon coffee plants. Semina: Ciências Agrárias, [S. l.], v. 32, n. 3, p. 949–958, 2011. DOI: 10.5433/1679-0359.2011v32n3p949. Disponível em: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1679-0359.2011v32n3p949. Acesso em: 2 apr. 2026.