Influence of Parent Material and Topography on some Soil Properties in Southwestern Nigeria

Olatunji, O; Ogunkunle, Oyetola; Tabi, Fritz Oben

doi:10.4314/njser.v7i1.28412

Cited by 6 publications

(6 citation statements)

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“…Shulka et al (2004b) reported strong and moderately spatial dependence in soil properties as a function of intrinsic variation in the soil texture and mineralogy, while moderate to weakly spatial dependence could result from extrinsic variation due to management system. The characteristics of exchangeable cations (calcium, magnesium and potassium) has been reported to be an indication of parent material characteristics as well as the differential effect of leaching therefore possibly of pedoturbation (Olatunji et al, 2007). While organic carbon was considered on the strength of their importance in the feeding and maintenance of termite nests.…”

Section: Spatial Dependence Of Soil Propertiesmentioning

confidence: 99%

Influence of termite infestation on the spatial variability of soil properties in the Guinea savanna region of Nigeria

Jude

Ogunkunle

2009

Geoderma

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Section: Spatial Dependence Of Soil Propertiesmentioning

confidence: 99%

Influence of termite infestation on the spatial variability of soil properties in the Guinea savanna region of Nigeria

Jude

Ogunkunle

2009

Geoderma

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“…Soils on basement complex rock are considered to have adequate available iron, as the values have been reported by several researchers (Mustapha and Singh, 2003;Yaro, 2005;Fasina et al, 2005;Olatunji et al 2007) to be above the critical levels (>5 mg kg -1 ) in soil developed on granite, biotite gneiss, banded gneisse and quartzite schist across Nigeria. The content of iron is rated high in soils on basement complex rocks in Bauchi State, Nigeria (Mustapha and Singh, 2003).…”

Section: Introductionmentioning

confidence: 98%

“…Most previous studies treated soils developed on basement complex rocks as one unit due to the intricate nature of their complexity (Fagbami, 1981;Esu, 1987;Mosugu, 1989;Mustapha and Singh, 2003;Fasina et al, 2005;Fasina et al, 2007;Olatunji et al 2007). However rocks of the basement complex are variable both in mineral assemblage and response to soil forming factors, resulting in soils with variable iron forms.…”

Section: Introductionmentioning

confidence: 99%

Forms of iron in soils on basement complex rocks of Kaduna state in northern guinea Savanna of Nigeria

Maniyunda¹,

Raji²,

Odunze³

et al. 2015

Bayero J. Pure App. Sci.

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The forms of iron extracted by different methods were studied in soils developed on four basement complex rocks within Northern Guinea Savanna of Nigeria namely: migmatite gneisses, older granite, quartzites and mica schists. The study shows that forms of iron generally decreased in the order of total elemental iron (Fe T) determined by XRF > double acid extractable total iron (Fe a) > dithionite extractable iron oxide (Fe d) > oxalate extractable iron oxide (Fe x) > pyrophosphate extractable iron oxide (Fe p) > 0.1M HCl extractable micronutrient available iron (Fe h). Variation in content of total irons (Fe T and Fe a) were not significant in the soils, but content of Fe h , Fe d , Fe x and Fe x/d significantly varied in the soils on the various parent materials. Therefore processes and extent of pedogenesis were considered to influence the variations resulting in recrystallization and increase in content of Fe h and Fe d in these soils. The significant correlation between various forms of Fe (Fe a , Fe d , and Fe x) with active iron ratio further affirmed that as soils on basement complexes increase in their pedogenetic age, Fe content generally increases irrespective of total forms of iron. The strong correlation between Fe T , Fe a and Fe d indicate that these forms of iron were extracted from similar sources.

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“…Detailed information on soils of the study area is scarce, yet the need to generate soil data to improve agricultural production exists. Such detailed information on soil that should guide agricultural use and management of soil resource is not readily available to farmers; where it exists, it is of limited significance to farmers (Olatunji, 2007). The objective of this study was to characterize in detail, the soils that were referred to as Amakama and Bende soil series in terms of morphological, physical, chemical and mineralogical properties with the view to augment the national database of soil resources.…”

Section: Introductionmentioning

confidence: 99%

Characterization of two benchmark soils of contrasting parent materials in Abia State, Southeastern Nigeria

Chikezie¹,

Eswaran²,

Asawalam³

et al. 2010

Glo Jnl Pure Appl Sci

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Detailed characterization of two important agricultural soils of contrasting parent materials, found in southeastern Nigeria was carried out. The Amakama soil formed over Coastal Plain Sands has a deep, well drained profile greater than 240cm deep. The soil texture varies from loamy sand in the surface layer to sandy clay loam down the profile. The Ibeku soil formed over Bende-Ameki (clay shale) formation has a deep profile that is gravelly in the upper 60cm and clayey in the lower horizons. Bulk density on oven dry basis ranged from 1.3 to 1.66 g cm-3 in the Ibeku soil and from 1.43 to1.52 g cm-3 in the Amakama soil. Water content at 33 kPa ranged from 13.7 to 14.9 in the Amakama soil and from 27.8 to 48.4 in the Ibeku soil. Chemically, the Amakama soil is deficient in basic cations with aluminum saturation being greater than 83%. The soils are very acidic (pH 4.5-4.9) and low in organic carbon, total nitrogen and available phosphorus. In contrast, the Ibeku soil has high levels of calcium, sum of basic cations that range from 9.2 to 23.5 cmol(+) kg-1 and aluminum saturation of 25-40%. Total nitrogen and organic carbon are medium and available phosphorus is low in this soil. The mineralogy of clay sized particles showed a dominance of kaolinite in both soils with some quantities of montmorillonite that increased down the profile. In the Ibeku soil, the mineralogy of coarse silt fractions showed that goethite and quartz were the dominant minerals in upper horizons (< 1 m) while potassium feldspar and goethite dominated the lower horizons. Amakama soil was classified as Fine loamy, siliceous, isohyperthermic, Rhodic Haplustox while Ajata-Ibeku soil was classified as very fine, kaolinitic, isohyperthermic, Aquertic Paleustalf.

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Influence of Parent Material and Topography on some Soil Properties in Southwestern Nigeria

Cited by 6 publications

References 0 publications

Influence of termite infestation on the spatial variability of soil properties in the Guinea savanna region of Nigeria

Influence of termite infestation on the spatial variability of soil properties in the Guinea savanna region of Nigeria

Forms of iron in soils on basement complex rocks of Kaduna state in northern guinea Savanna of Nigeria

Characterization of two benchmark soils of contrasting parent materials in Abia State, Southeastern Nigeria

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