AHUKAEMERE, C.M.; UZOHO , B.N.; IROKWE , I.F.; NDUKWU , B.N.; OSUJIEKE , D.N. Iron, zinc, copper and manganese availability in four contrasting hydromorphic soils of Egbema, south-eastern Nigeria. AgroChemistry and Soil Science, [S. l.], v. 85, p. 27–34, 2016. DOI: 10.31073/acss85-04. Disponível em: https://agrochemsoilsci.org/index.php/journal/article/view/154.. Acesso em: 16 jul. 2026.