The Status of Micronutrients and Sulphur in some Plantation Crops at Different Ages in an Alfisol of Southern Nigeria. JOURNAL OF TROPICAL SOILS, [S. l.], v. 19, n. 2, p. 53–58, 2015. DOI: 10.5400/jts.2014.v19i2.53-58. Disponível em: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/201. Acesso em: 7 nov. 2025.