ABSTRACT
Three soil profile pits which represent three soil units
ONM-0 1, ONM-02 and ONM-03 developed on sand stones and coastal plain sands
transition of Michael Okpara University of Agriculture, Umudike Western farm in
South Eastern Nigeria were studied. The study was carried out on about
10,000m2of land to characterize and classify the soil as well as evaluate the
land. Soil samples collected from each identifiable horizon were analyzed for
particle size distribution, soil pH, organic carbon, total nitrogen,
exchangeable acidity, available phosphorus, exchangeable cations, cation
exchange capacity and micronutrient, bulk density and saturated hydraulic
conductivity of all the soil units. The classification was done using the
(USDA) soil taxonomy with approximate correlation of (FAQ) soil map of the
world legend. The soils were well drained with sandy loam to sandy clay loam
surface over clay loam to gravelly clay and clay sub soils. The soils were very
strongly acidic to strongly acidic (pH 5.00-5.40) and have low base saturation
(30-40%). Organic carbon contents were lowmoderately low (0.95-1.34%). Nitrogen
contents were low to moderately low (0.01-0.11%). Available phosphorus is low
to moderate (4.50-8.68 mgkg'), while cation exchange capacity values are very
low- moderate (5.0-15.0 cmolkg'). Exchange cations are very low to low
(1.20-3.4 lcmolkg ') for Ca, low-moderate (0.80-1,70 cmo1kg') for Mg, for K
very low to moderate (0.14-0.23 cmo1kg') and very low to moderate (0.70-0.31
cmolkg'). The bulk density values ranges from (0.55- 14g/ cm3) the saturated
hydraulic conductivity values range from (0.55-45.36 ksat). Available micronutrients
are adequate (1.90-7.20 mgkg') for Zn, adequate (1.69-3.40 mgkg 1) for Mn,
marginal to adequate (2.10-7. l0mgkg 1) for Fe and marginal to adequate (0.56-1
.20mgkg') for Cu. Based on their characteristics the soils were classified as
Typic Hapludult (USDA) soil taxonomy correlated approximately as Haplic Acrisol
(FAQ).
OKECHUKWU, M (2021). Soil Characterization, Classification And Land Capability Evaluation Of The Western Farm Of Michael Okpara University Of Agriculture, Umudike, South Eastern Nigeria. Mouau.afribary.org: Retrieved Dec 25, 2024, from https://repository.mouau.edu.ng/work/view/soil-characterization-classification-and-land-capability-evaluation-of-the-western-farm-of-michael-okpara-university-of-agriculture-umudike-south-eastern-nigeria-7-2
MATHEW, OKECHUKWU. "Soil Characterization, Classification And Land Capability Evaluation Of The Western Farm Of Michael Okpara University Of Agriculture, Umudike, South Eastern Nigeria" Mouau.afribary.org. Mouau.afribary.org, 07 Dec. 2021, https://repository.mouau.edu.ng/work/view/soil-characterization-classification-and-land-capability-evaluation-of-the-western-farm-of-michael-okpara-university-of-agriculture-umudike-south-eastern-nigeria-7-2. Accessed 25 Dec. 2024.
MATHEW, OKECHUKWU. "Soil Characterization, Classification And Land Capability Evaluation Of The Western Farm Of Michael Okpara University Of Agriculture, Umudike, South Eastern Nigeria". Mouau.afribary.org, Mouau.afribary.org, 07 Dec. 2021. Web. 25 Dec. 2024. < https://repository.mouau.edu.ng/work/view/soil-characterization-classification-and-land-capability-evaluation-of-the-western-farm-of-michael-okpara-university-of-agriculture-umudike-south-eastern-nigeria-7-2 >.
MATHEW, OKECHUKWU. "Soil Characterization, Classification And Land Capability Evaluation Of The Western Farm Of Michael Okpara University Of Agriculture, Umudike, South Eastern Nigeria" Mouau.afribary.org (2021). Accessed 25 Dec. 2024. https://repository.mouau.edu.ng/work/view/soil-characterization-classification-and-land-capability-evaluation-of-the-western-farm-of-michael-okpara-university-of-agriculture-umudike-south-eastern-nigeria-7-2