Spatio – Vertical Distribution of Zinc in Selected Farmlands in Imo State, Southeastern Nigeria
[1]
Ezeji C., Department of Soil Science, Federal University of Technology Owerri, Nigeria.
[2]
E. U. Onweremadu, Department of Soil Science, Federal University of Technology Owerri, Nigeria.
[3]
S. N. Obasi, Department of Agricultural Technology, Imo State Polytechnic Umuagwo, Nigeria.
[4]
Abbah E. C., Department of Agricultural and Bioresources Engineering, Federal University of Technology, Owerri, Nigeria.
This work was conducted on the soils of four selected communities namely Obudi Agwa, Izombe, Uba Agwa and Obokofia in Imo State, Nigeria. A free survey technique was employed in locating profile pits. The soil samples collected were air dried, sieved and subjected to laboratory analysis. Degree of variability was estimated using coefficient of variation (CV%). Result showed that soils were dominated by sand (75.92 – 91.36%). Bulk density distribution increased with depth across the study areas (1.27 – 1.71 g/cm3). The studied soils were strongly acidic having pH <6.0 while organic matter was generally low but higher in Izombe and Obudi Agwa as both recoded 0.88%. Cation exchange capacity (CEC) ranged from 5.65 – 6.71Cmol/kg. Mean Zinc content was higher in Izombe than others (Izombe [12.63mg/kg]> Uba Agwa [10.64mg/kg] > Obudi Agwa [9.87mg/kg] and Obokofia [7.30mg/kg]). Result indicated a significant (p=0.05) positive correlation between Zn and pH while the reverse was the case when Zn was correlated with Organic matter and Effective cation exchange capacity (ECEC).
Spatial Variability, Zinc Distribution, Soil Pollution, Soil Properties
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