Articles

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379 articles
351
Research Article

Use of Ash for Soil Fertility Improvement Effect on Cowpea

OJENIYI STEPHEN OLUSOLA*, Oyatoye A., Abdulraheem M. I.

Different rates of wood ash at 0 to 6t/ha were applied to cowpea crop in an experiment carried out at Akure, Southwest Nigeria to study effects of ash on cowpea performance soil and plant nutrients composition. The experimental soil is slightly acidic, low in available P and exchangeable Ca. Ash increased soil pH which increased with the rate of ash. Available P, exchangeable Ca, K and Mg were inc...

Apr, 2017 pp. 216-221 273 views 481 downloads
352
Research Article

Effect of Cropping System on Soil Profile Nutrient Contents

AWANLEMHEN B.E.*, OJENIYI STEPHEN OLUSOLA

Four soil profile pits were dug under differing cropping systems at Nigerian Institute For Oil Palm Research (NIFOR) experimental plantations in Benin City and chemically analysed. Cropping systems were sole oil palm, oil palm with cassava, oil palm with plantain, and oil palm with coconut. Samples were collected at 0 – 20, 20 – 40, 40 – 60, 60 – 80 and 80 – 100cm depth and analyzed for K, P, Ca, ...

Apr, 2014 pp. 217-220 259 views 571 downloads
353
Research Article

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. 219-225 239 views 504 downloads
354
Research Article

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. 224-231 270 views 481 downloads
355
Research Article

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. 226-234 277 views 524 downloads
356
Research Article

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. 230-244 273 views 464 downloads
357
Research Article

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

Ovie S.*, Nnaji G. U, Oviasogie P.O, 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. 235-251 250 views 512 downloads
358
Research Article

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

Aki, E. E.*, 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. 242-253 270 views 14 downloads
359
Research Article

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. 245-254 258 views 511 downloads
360
Research Article

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. 245-254 256 views 520 downloads