409 articles
211
Research Article DOI: 10.67042/njss.2020.6fncfnw4

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. 82-91 178 views 301 downloads
212
Research Article DOI: 10.67042/njss.2022.0kjwg9gd

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. 83-101 349 views 584 downloads
213
Research Article DOI: 10.67042/njss.2013.v0qh94c3

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. 83-93 166 views 278 downloads
214
Research Article DOI: 10.67042/njss.2023.20rda6m0

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, 15...

Apr, 2023 pp. 85-94 101 views 105 downloads
215
Research Article DOI: 10.67042/njss.2022.bj70wf3q

Kinetics of Phosphorus Sorption in Selected Soils of Southeastern Nigeria

Azu, Donatus E.O*, V.E. Osodeke, Mabel Ifeoma Onwuka, 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. 85-94 200 views 287 downloads
216
Research Article DOI: 10.67042/njss.2021.ox65g4nc

Effect of Trichoderma Inoculated Organic Manure on Water Retention Characteristics of Two Texturally Contrasting Soils in Nsukka, Southeastern, Nigeria

Azuka, C.V.*, Oka, S. C

The effect of Trichoderma inoculated organic manure on water retention charac- teristics of two texturally contrasting soils was investigated in the glasshouse of the Department of Soil Science, University of Nigeria, Nsukka. The study in- volved two texturally contrasting soils, sandy loam (SL) and loamy sand (LS) amended with poultry manure (PM) at three rates (10 t/ha, 20 t/ha and 30 t/ha) and ...

Apr, 2021 pp. 85-92 165 views 276 downloads
217
Research Article DOI: 10.67042/njss.2020.56n71m0y

Influence of Soil Amendment with Poultry Droppings on the Soil Properties and Productivity of Cucumbers (cucumis Sativus L.) on a Degraded Ultisol in Nsukka Area, Southeast Nigeria

Okebalama C.B*, Ogunezi K.C, Agbo I.C, Asogwa K C

Poultry manure (PM) input is globally utilized for enhancing and maintaining soil fertility in vegetable farming. In many tropical regions, however, ‘site’ specific PM rate for optimum crop yield is lacking. A three-year continuous cucumber cultivation with 0, 10, 20 and 30 t/ha PM rates in three replicates, were arranged in RCBD on an Ultisol. Soil physicochemical properties and cucumber yield re...

Aug, 2020 pp. 85-94 158 views 269 downloads
218
Research Article DOI: 10.67042/njss.2021.c2g2you5

Effects of Litter Quality and Decomposition Rate of Some Agroforestry Species on Soil Properties in Rivers State University Campus

Mgbonu Kelechi*, Zarma Adamu, Ogori Joeguluba, Wenibo Andrew

The effect of litter quality and decomposition rate of some agroforestry species on soil properties found in the main campus of Rivers State University, Port Harcourt, Nigeria was investigated. Litters from Masquerade tree, gmelina and teak were collected and their chemical composition determined. Twenty-five grams (25 g) of each leaf litter was placed in a nylon litter bag and buried shallowly wi...

Dec, 2021 pp. 87-94 173 views 279 downloads
219
Research Article DOI: 10.67042/njss.2021.cw8i1irl

Decomposition of Entandrophragma Cylindricum Tree Prunings in Agroforestry System in Onne, Rivers State

Koyejo, A.O*, Olatidoye, O.R, Adetunji, A.S.

A study was conducted at Swamp Forest Research Station, Onne, Forestry Research Institute of Nigeria, to evaluate the rate of decomposition of E. cylindricum tree prunings. The experiment was a 2x8 factorial in a randomized complete block design with three replications. The first factor comprises two placement methods (surface-placed and soil-incorporated) and the second factor comprises eight biw...

Aug, 2021 pp. 87-93 159 views 270 downloads
220
Research Article DOI: 10.67042/njss.2019.renhhkwo

Effects of Different Land Uses on Soil Quality and Degradation in Abeokuta, Ogun State, Nigeria

Ejike Basil*, Bolarinwa Ayoola Senjobi, Oyegoke, C.O,, Fabunmi, T.O.

A detailed soil survey was carried out at the Teaching and Research Farms of Federal University of Agriculture, Abeokuta. The study aimed to determine the effects of different land-use types on some soil quality indicators and to examine the relationship among the land use types, soil quality indicators, and land degradation. Surface (0-15cm) and sub-surface (15-30 cm) soil samples were taken from...

Apr, 2019 pp. 87-101 211 views 298 downloads