P.o. Oviasogie

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Research Article Vol. 27, Issue 1

Slope Position and Depth Effects on Selected Soil Physical Properties Under Oil Palm (elaeis Guineensis) Plantation

O. O. Olubanjo^*, F. U. Maidoh, P.O. Oviasogie

A study was conducted to examine the influence of slope position and depth on soil physical properties in an oil palm (Elaeis guineensis) plantation established on a gently sloping terrain in NIFOR Benin, Nigeria. A line transect was delineated along the slope of the selected plantation. The line transect was 45 m long and 45 m wide. It was divided...

Apr, 2017 Vol. 27, Issue 1 318 views 576 downloads

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Research Article Vol. 27, Issue 1

Effects of Land Use on Soil Micronutrients Status in Ughoton Community Ovia North East, Edo State, Nigeria.

P.O. Oviasogie^*, Awanlemien B. E., Ikyaahemba P. T.

The study was conducted to assess the effects of different land use practices on soil micronutrients in 18 soil samples collected at 0-15 cm and 15-30 cm depth respectively from three land use types (Cassava field, Oil palm and Banana plantation) and analyzed for physico-chemical properties and selected micronutrients (Zn, Cu, Fe and Mn) using stan...

Apr, 2017 Vol. 27, Issue 1 239 views 475 downloads

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Research Article Vol. 26, Issue 1

Distribution of Forms of Potassium in Soils Cultivated to Shea (vitellaria Paradoxa C.f. Gaertn) Trees at Bida, Niger State, Nigeria

OSAYANDE P.E.^*, P.O. Oviasogie, Orhue, Ehi Robert, Udoh, J. J

The distribution of potassium forms was studied at Bida, Niger state as part of the Shea butter tree domestication effort of the Nigerian Institute for Oil Palm Research. Soil samples were obtained with the aid of a soil auger at 0-15 and 15-30 cm. The soil samples were air dried, sieved with a 2 mm sieve and analyzed for some physical, chemical an...

Apr, 2016 Vol. 26, Issue 1 242 views 443 downloads

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Research Article Vol. 24, Issue 1

Assessment of Degradation in Soils of Transplanted Shea Tree (vitellaria Paradoxa Gartn C. F.)under Two Land Use Types at Bida, Niger State

OSAYANDE P.E.^*, P.O. Oviasogie, EKEBAFE M.O, MAIDOH F.U.

Land use affects the fertility and management of soils. The influence of contrary land use types imposed on a Shea field was studied at NIFOR Substation, Bida, Niger state. The field, a sparse grass fallow measuring a 100m X 100m was demarcated into two equal halves. A portion of it was cleared and planted to melon while the sparse grass fallow was...

Apr, 2014 Vol. 24, Issue 1 283 views 594 downloads

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Research Article Vol. 24, Issue 1

Soil Fertility Assessment of a Shea (vitellariaparadoxa C.f. Gaertn ) Field at Bida, Niger State

OSAYANDE P.E.^*, P.O. Oviasogie, AWANLEMHEN B.E., Orhue E. R.

Knowledge of the fertility status of soils is basic to managing them for optimum crop production. Fertility status of a cultivated Shea (Vitellaria paradoxa C.F. Gaertn) field was assessed at Bida, Niger state. Soil samples were collected using auger and core methods, air-dried, sieved with a 2- mm sieve and analyzed for physical and chemical prope...

Apr, 2014 Vol. 24, Issue 1 254 views 601 downloads

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Research Article Vol. 23, Issue 2

Assessment of Dithionite and Oxalate Extractable Iron and Aluminium Oxides in Soils Supporting Raphia Palms at Nifor Main Station

OSAYANDE P.E.^*, P.O. Oviasogie, Aisueni N.O., Stephen O., Irhemu P., EKEBAFE M.O

The oxides of iron and aluminium are known to affect the physical and chemical properties of soils such as ion adsorption, aggregate stability, phosphorus sorption and charge characteristics. This study was conducted to provide information on the status of free oxides in both soils of the Inland Valley and a well drained Upland soil at the NIFOR ma...

Aug, 2013 Vol. 23, Issue 2 255 views 529 downloads

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Research Article Vol. 23, Issue 2

Effect of Composted Empty Oil Palm Fruit Bunches on the Growth and Yield of Amaranthus and Soil Physicochemical Properties

P.O. Oviasogie^*, E. Oko-ob, E.I. Eguagie

The effect of composted empty oil palm fruit bunches (EFB) on the growth and yield components of Amaranthus and soil physicochemical properties was evaluated at the Nigerian Institute for Oil Palm Research (NIFOR) main station. The composted EFB was applied at four different rates of 0, 10, 20, and 30 tons/ha. The experiment was replicated four tim...

Aug, 2013 Vol. 23, Issue 2 265 views 538 downloads

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Research Article Vol. 23, Issue 2

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...

Aug, 2013 Vol. 23, Issue 2 248 views 511 downloads

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Research Article Vol. 23, Issue 2

Description and Characterization of Soils Supporting Vitellaria Paradoxa (shea Tree ) in Different Geo - Ecology in Nigeria

P.O. Oviasogie^*, E. Oko-oboh, D.O. Oseghe

Characterization of soils supporting shea tree in different Geo-ecology was carried out. This was done using the International Plant Genetic Resources Institute (IPGRI) descriptors for environment and site characterization adapted from FAO. The result indicates that the climate (Rainfall and Temperature) of the different geo-ecology has slight vari...

Aug, 2013 Vol. 23, Issue 2 295 views 482 downloads

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Research Article Vol. 23, Issue 1

Fertility Status of Soils Obtained from Coastal Plain Soils and Inland Transition Formations

P.O. Oviasogie^*, E. Oko-Oboh

The study was conducted to investigate the fertility status of coastal plain and inland transition soils in South-south and South west of Nigeria. Soil morphological characterization and sampling were obtained from the coastal plain area at Lagos Island and environs, while the Inland transition soils were obtained at Obaretin near Benin City, Edo S...

Apr, 2013 Vol. 23, Issue 1 284 views 539 downloads

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