DISTRIBUTION OF MAGNESIUM FORMS IN SURFACE HYDROMORPHIC SOILS OF SOUTHERN NIGERIA

Journal: Acta Chemica Malaysia (ACMY)
Author:  Osemwota, I.O., Dania, S.O., Bakare, A.I., Eniola, R.I
ISSN: 2576-6732
e-ISSN: 2576-6724

This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.01.2025.24.27

The distribution of Magnesium forms in surface hydromorphic soils of sourthern Nigeria was studied. Fifty four composite surface (0 to 15cm) soil samples drawn from different parent materials were used. Total Mgranged from 81.42 to 475.62mg/kg, while water soluble Mg, exchangeable Mg, difficulty exchangeable Mg and Mg reserved ranged from 0.080 to 1.04, 0.160 to 4.56, 0.24 to 5.60 and 0.40 to 150.70 cmol/kg, respectively. Soils formed on crystalline metamorphic and igneous rocks were highest in Mg status when compared to soils formed on shale mixed with sand stone and clay, coastal plain sand, coastal alluvium and fresh water swamps. Magnesium status in these soils was strongly influence by parent materials. Other factors that influenced the Mg formed on the different parent materials were silt and clay contents, organic matter and pH. Fifteen percent of the soils sampled were deficient in available Mg based on already established critical level for Nigerian soils.