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409 articles
371
Research Article DOI: 10.67042/njss.2013.ojbyixg3

Effect of Land Use and Soil Depth on Soil Phosphorus Fractions

Jamiu Oladipupo Azeez*, Aloba F. O, Ogunwale O. V, Oguntade O. A., Adekunle. I. O, Amusan A. O

The aims of the experiments were to determine the effect of land use and soil depths on soil phosphorus fractions. Soil samples were taken systematically from dug profile pits at 0-20, 20-40 and 40-60 cm. Soil samples were characterized and P fractionation analyses were done in triplicates using standard procedures. Data generated were analysed using Statistical Analyses System (SAS) software. Res...

Aug, 2013 pp. 219-225 166 views 262 downloads
372
Research Article DOI: 10.67042/njss.2016.09da7h22

Effect of Soil Quality Used as Sub - Grade Material and Road Pavement Failure Along the Benin - Ore Road

CHOKOR J.U.*, Ikoba, V.

The Benin –Akure road has undergone various degrees of failures. Road failures (potholes, surface cracks, ruts and depressions, washouts etc.) have a major strain on the economy of the nation as it affects transport of agricultural produce to urban areas.This research was carried out by evaluating the plasticity indices of the brought in soils used for the subgrade material for the road bed as one...

Aug, 2016 pp. 224-231 177 views 247 downloads
373
Research Article DOI: 10.67042/njss.2013.2infol16

Effect of Land Use on the Distribution of Heavy Metals in Abeokuta, Southwestern Nigeria

Jamiu Oladipupo Azeez*, Oladosu S.A.O, Ilori O. E, Omotosho S. M., Onasanya, O. O, Oguntade O. A.

To prevent risks of metal pollution and secure public health, the assessment of the pollutant load of different land use is germane in emerging cities. The study investigated the distribution of water, EDTA and HCl extractable Cd, Pb, Zn, Cu, Cr, Ni and Mn in soils of different land uses in Abeokuta, southwestern Nigeria. It was hypothesized that land use pattern has an effect on the depth distrib...

Aug, 2013 pp. 226-234 178 views 256 downloads
374
Research Article DOI: 10.67042/njss.2017.f4zds7ma

Irrigation Suitability Ratings and Okra Productivity of Some Mid - Benue Trough Soils: a Comparative Analysis

Abagyeh S. O. I*, Ibo P. I., Idoga S.

A detailed soil survey using grid method was conducted to characterize and rate irrigation suitability of soils and relate it with okra productivity under surface irrigation. Two soil profiles were dug at each site and morphologically described. Soils sampled from identified profile horizons were analyzed. Parametric evaluation method using the soil characteristics was employed. A 4×4×4 factorial ...

Apr, 2017 pp. 230-244 184 views 251 downloads
375
Research Article DOI: 10.67042/njss.2013.k3segm35

Changes in Physical Properties of an Ultisol as Influenced by Composted Empty Oil Palm Bunches and Chemical Fertilizer Under Water Stress Conditions

Ovie S.*, Godwin Nnaji, P.O. Oviasogie, OSAYANDE P.E., Nkechika A.

A greenhouse study was conducted at the University of Nigeria, Nsukka to evaluate and compare the effects of sole and complimentary use of composted empty oil palm bunch and chemical fertilizer for improvement of soil physical properties under water stress conditions. The experiment was a 3x3x4 factorial in a completely randomized design with three replications. It consisted of 3 factors–irrigatio...

Aug, 2013 pp. 235-251 171 views 263 downloads
376
Research Article DOI: 10.67042/njss.2026.en5g3nqd

Characterization and Classification of Selected Soils Formed on a Planar Surface in Wukari, Nigeria

Yasin Agono Awwal*, Sadiq Fatihu Kabir, Gisilanbe Solomon Adamu, David Janet Emye

This study investigates the properties and variability of selected pedons in Wukari, Nigeria, focusing on their characterization and classification. Field soil profile description and laboratory analyses were conducted to assess morphological, physical, and chemical properties. Soil samples were collected from identified horizons and analyzed for selected properties. Genetic classification was per...

May, 2026 pp. 239 - 256 122 views 65 downloads
377
Research Article DOI: 10.67042/njss.2016.d4w44ui1

Pedological Study of Soils Developed on Granodiorite in Biase Local Government Area of Cross River State, Nigeria

E. E. Aki*, I. E. Esu, Akpan-Idiok A. U.

Morphological, physico-chemical and mineralogical properties of soils derived from Granodiorite of Biase, Cross River State, Nigeria were studied with a view to classifying the soil taxonomically, assessing their potentials and suggesting appropriate management strategies. Three profiles were dug on the landscapes of Ikot-Okpara, Betem and Ehom. The micro-morphological properties of soil colour, s...

Aug, 2016 pp. 242-253 174 views 93 downloads
378
Research Article DOI: 10.67042/njss.2017.994i363b

Maize Growth and Yield Components as Influenced by Different Sources of Organic Fertilizers

Ayoola O.T.*, Adebayo A.K

A trial was conducted on field between May – September, 2010 in two agroecologies of South West, Nigeria to determine the effect of different organic based fertilizer source on growth and yield components of different maize varieties. The experiment was laid out in Randomized Complete Block Design in split plots arrangement replicated four times. The maize varieties served as the main plot (Obatam...

Apr, 2017 pp. 245-254 172 views 263 downloads
379
Research Article DOI: 10.67042/njss.2013.so1drbt8

Evaluation of Some Sandstone Derived Soils of Southern Nigeria for Rubber (hevea Brasiliensis )cultivation

Orimoloye J. R.*, Akinbola G. E.

Some soils derived from crustaceous sandstones at Iyanomo, Edo State, Southern Nigeria were mapped, characterised and evaluated for rubber cultivation, using local, USDA Soil Taxonomy and FAO systems. Conventional parametric and non-parametric land suitability evaluation systems as well as weighted parametric approach in Geographic Information System (GIS) methods were used to generate suitability...

Aug, 2013 pp. 252-263 165 views 223 downloads
380
Research Article DOI: 10.67042/njss.2016.vcz1lyyd

Characterization of Biochar Produced from Diverse Feedstocks Used as Amendment on Acidic Ultisols at Umudike, Abia State.

Mabel Ifeoma Onwuka*, Nwangwu B.C

Biochar is used as a soil amendment to improve soil nutrients for crop production. The nutrient contents of biochar depend on the type of feedstock, pyrolysis types and temperature among others. In this study, it was hypothesized that biochar produced from different feedstock at the same temperature will have different effects on soil properties. To verify this, a pot experiement was set up at the...

May, 2016 pp. 254-264 218 views 247 downloads