Ahukaemere C, Uzoho B, Irokwe I, Ndukwu B, Osujieke D. Iron, zinc, copper and manganese availability in four contrasting hydromorphic soils of Egbema, south-eastern Nigeria. acss [Internet]. 2016 Aug. 9 [cited 2026 Jul. 16];85:27-34. Available from: https://agrochemsoilsci.org/index.php/journal/article/view/154