Influence of applied copper and other micronutrients on groundnuts (Arachis hypogaea) and sorghum (Sorghum bicolour) on Malaysian oligotrophic peat. Tropical Agriculture, [S. l.], v. 56, n. 1, 1979. Disponível em: https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/2921. Acesso em: 30 apr. 2025.