Articles

Browse our published research articles

396 articles
201
Research Article

Impact of Composted Oil Palm Wastes on Soil Physical Properties, Organic Matter Content and Growth of Oil Palm Seedlings Under Different Moisture Regimes

Ovie S.*, Anisiobi, G.E., Okolo, C.C., Udegbunam, O.N., Okenmuo, F.C.

A greenhouse study was conducted at the University of Nigeria, Nsukka, to evaluate the effect of composted oil palm bunch waste for improvement of some soil physical properties, organic matter status and growth of oil palm seedlings under different water management conditions. The experiment was a 4 x 3 factorial fitted into the completely randomized design with three replications. It consisted of...

Apr, 2015 pp. 80-94 453 views 630 downloads
203
Research Article

Microaggregate Stability and Organic Carbon Fractions of a Tropical Loamy Sand Amended with Pig-Composted Manure

ADESODUN Johnson Kayode*, O. S. Adekonojo

Soil organic carbon (SOC) is important in restoration of microaggregate stability of tropical soils. This study evaluated effect of pig-composted manure applied at 0, 5, 10 and 15 Mg ha-1 to cultivated land and forest re-growth land on distribution of organic carbon (OC) fractions and microaggregate stability using principal component analysis (PCA). The cultivated land was planted with two variet...

Aug, 2011 pp. 80-89 426 views 647 downloads
204
Research Article

Evaluation of Infiltration Models in Soils of Two Land Use Systems in Calabar, Nigeria

Isong I. A.*, Ogban P. I., Antigha, N.R.B., Okon, P. B.

Recently, the importance of the infiltration process in agriculture and the environment has resulted in an upsurge of interest by soil and water scientists to model the process for quantitative application. A study was conducted on the University of Calabar Teaching and Research Farm, Calabar to evaluate the effect of oil palm (OP) and arable farm (AF) land use systems on the Green-Ampt (GA), Phil...

Aug, 2018 pp. 81-94 394 views 636 downloads
205
Research Article

Characterisation and Fertility Capability Status of Alfisols Under Different Land Uses in Ogun State, South Western Nigeria

Senjobi B.A.*, Ande O.T, Ogunkunle A. O.

This study was designed to assess the fertility potential of agricultural soils for optimal and sustainable production. Soils under five land uses were characterized and evaluated for fertility status using Fertility Capability Classification (FCC) systems. The results showed that the morphology, physical, and chemical properties of the soils varied from one land type to another in all the five la...

Aug, 2013 pp. 81-102 503 views 607 downloads
206
Research Article

Effect of Nypa Fruticans Pruning Regime and Soil Properties on Regeneration of Mangrove Species (rhizophora Racemosa) in Eastern Obolo, Akwa Ibom State

Ogban P. I.*, Ebong, U. P, Dickson, U. S

The study was conducted to evaluate the effect of Nypa fruticans pruning regimes on the regeneration of mangrove (Rhizophora racemosa) at Okorombokho in Eastern Obolo, Akwa Ibom State, Nigeria. The Nypa was pruned at a uniform height of 10 cm and the area protected with used fishing nets against infiltration by Nypa seeds in tidal floods. Mangrove plants of similar height were inter-planted among ...

Apr, 2020 pp. 82-91 420 views 687 downloads
207
Research Article

Soils of the Degraded Derived Savanna Land in Southwest Nigeria: Distribution, Morphology and Sustainable Climate–smart Land Use Plan

Okusami, Temitope A.*

Southwest Nigeria belongs to the humid tropical climate with a Wet/Dry Forest and a Derived savanna. The studied site is under the latter ecosystem (located around Ilero, 08.05N/03.22E in Kajola Local Government Area of Oyo State) and was a former mechanized farm with low-intensity land use pattern with seasonal uncontrolled burning/grazing with a subsequently degraded landscape. And to encourage ...

Apr, 2022 pp. 83-101 540 views 1,316 downloads
208
Research Article

Soil Chemical Properties and Growth of Maize (zea Mays L.) as Affected by Cocoa Pod Compost Based N and P Fertilizer

Atere C. T.*, Olayinka A.

A greenhouse soil culture experiment was carried out to investigate the effects of organo-mineral fertilizers on soil chemical properties, growth, dry matter yield and tissue nutrient contents of maize (Zea mays L.). The organo-mineral fertilizers consisted of cocoa (Theobroma cacao) pod compost fortified with inorganic N and P. Five (5) kilogramme portions of an ultisol obtained from an uncultiva...

Apr, 2013 pp. 83-93 413 views 654 downloads
209
Research Article

Zinc Estimation Needs for Improvement of Vigna Radiata Productivity in Savannah Soils of South - Eastern Ecological Zone, Nigeria.

Ernest U. Eteng*

Zinc Estimation Needs for Improvement of Vigna Radiata Productivity in Savannah Soils of South - Eastern Ecological Zone, Nigeria.",         "abstract": "To identify the quantity of optimal rates of zinc fertilizer needed for maximizing Vigna radiata yield, a greenhouse and field studies were conducted in two cropping seasons. For the greenhouse, zinc sulphate was applied at five dosages (0, 5, 1...

Apr, 2023 pp. 85-94 181 views 93 downloads
210
Research Article

Kinetics of Phosphorus Sorption in Selected Soils of Southeastern Nigeria

Azu, Donatus E.O*, V.E. Osodeke, Onwuka, M. I, Osisi A. F

This study investigated the phosphorus sorption kinetics of soils of varying parent material and soil depth in south east Nigeria. The parent materials studied were: Coastal Plain Sand, Basalt, Shale and Sandstone and the depths were: 0 – 20cm, 20-40cm and 40-60cm. Soil samples were collected from the different parent material in three replicates and a total of thirty-six composite samples were co...

Aug, 2022 pp. 85-94 485 views 664 downloads