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Osayande P.e.

Chemistry Division, Nigerian Institute for Oil Palm Research (NIFOR), P.M.B. 1030, Benin City, Edo State, Nigeria

pvefosa2001@yahoo.co.uk
6 Publications
1,539 Views
3,151 Downloads

Publications 6

1
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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2
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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3
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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4
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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5
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 2 249 views 511 downloads
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6
Research Article Vol. 23, Issue 2

Assessment of the Water Conservation Potential and Mode of Application of Coconut (cocos Nucifera) Husk Hydrogel on Soil Cultivated to Coconut Seedling

M.O. Ekebafe*, L. O. Ekebafe, OSAYANDE P.E., F. Maidoh, P. Irhemu

Coconut husk cellulosic-polyacrylonitrile hydrogel was synthesized in aqueous solution. Saponification of grafted copolymer was done by reaction with sodium hydroxide followed by methanol precipitation. The reaction was confirmed using FTIR and characterized in terms of water retention value (286g/g) and de-swelling ratio (83.16%). Soil samples col...

Aug, 2013 Vol. 23, Issue 2 256 views 473 downloads
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