Characterization and Classification of Selected Rice Soils of Tropical Rainforest Region, Southeastern Nigeria
Agriculture, Forestry and Fisheries
Volume 4, Issue 3-1, May 2015, Pages: 46-50
Received: Feb. 25, 2015; Accepted: Feb. 25, 2015; Published: May 19, 2015
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S. N. Obasi, Department of Agricultural Technology, Imo State Polytechnic, Umuagwo Imo State, Nigeria
E. U. Onweremadu, Soil Science Department, Federal University of Technology, Owerri, Imo State Nigeria
Egbuche C. T., Department of Forestry and Wildlife Technology, Federal University of Technology, Owerri, Imo State Nigeria
U. P. Iwuanyanwu, Department of Agricultural Technology, Imo State Polytechnic, Umuagwo Imo State, Nigeria
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The study carried out in Amachi Izzi, Abakaliki, tropical rainforest region, Southeastern Nigeria was aimed at characterizing and classifying the lowland rice soils of the area. Three pedons were sunk, at the region. Results showed that soils were strongly acidic (pH <5.0), profiles 1 and 3 had low organic matter while profile 2 was moderate. Total nitrogen was also low to medium while available P was medium. Sand exhibited low variation (CV ≤15%) at Profile 2 while it indicated moderate variation (CV>15≤35%) at Profile 1 and Profile 3. Silt varied lowly (CV≤15%) at Profile 1 and moderately (CV>15≤35%) at Profile 2 and Profile 3. Clay varied highly (CV>35%) in all pedons of Abakaliki lowland soils. Base saturation varied highly (CV>35%) at Profile 1 and Profile 2 and lowly (CV≤ 15%) at Profile 3. Al saturation varied highly (CV>35%) in all pedons at Ebonyi north lowlands. Ochric epipedons were observed in pedons 1, 2 and 3 and diagnostic subsurface horizons were kandic. The temperature regime and percentage base saturation were considered at the subgroup level in the soil taxonomy. Pedons 1 and 2 were classified as Fluvaquentic Eutrudepts and Eutric Cambisol (FAO – WRB) while Pedon 3 was classified as Fluvaquentic Dystrudepts and Dystric Cambisol (FAO – WRB).
Soil Classification, Rice Soils, Soil Variability and Southeastern Nigeria
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S. N. Obasi, E. U. Onweremadu, Egbuche C. T., U. P. Iwuanyanwu, Characterization and Classification of Selected Rice Soils of Tropical Rainforest Region, Southeastern Nigeria, Agriculture, Forestry and Fisheries. Special Issue: Environment and Applied Science Management in a Changing Global Climate. Vol. 4, No. 3-1, 2015, pp. 46-50. doi: 10.11648/j.aff.s.2015040301.18
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