Articles

Browse our published research articles

409 articles
91
Research Article DOI: 10.67042/njss.2025.z4ngfyrq

Soil structure stability and organic carbon distribution along the toposequence of Orumba North in derived savannah of the South-East, Nigeria

Chika Jidera*, Ezeokoye, C.S., Sunday Ewele OBALUM, Ukaegbu E.P.

In high-rainfall zones with severe water erosion problems, soil structure stability as promoted by soil organic carbon (SOC) should be prioritized. Landscape positions and land use influence soil properties and nutrient distribution. This study assessed soil structure stability and SOC content at top-slope, mid-slope and low-slope positions of a toposequence at Orumba North in derived savannah zon...

Aug, 2025 pp. 34-42 297 views 350 downloads
92
Research Article DOI: 10.67042/njss.2020.cb38v247

Effect of Simulated Acid Rain on Growth and Micronutrient Uptake of Okra (abelmoschus Esculentus) on Coastal Plain Sands in Abia State, South - Eastern, Nigeria

Ernest U. Eteng*, Essien G. E

The study was conducted in April 2019 at Umudike to examine the impact of simulated acid rain (SAR) and frequency of SAR spray on growth and micronutrients content of okra (Abelmoschus esculentus (L.) Moench) in an ultisol at Umudike. The treatments consisted of three (3) pH levels: Coca-cola solution (pH 2.7) and SAR (pH 3.5 and 5.5) as well as control (water) and, three (3) frequency of foliar s...

Aug, 2020 pp. 34-41 200 views 291 downloads
93
Research Article DOI: 10.67042/njss.2023.qjkjvcu3

Simulating Soil Nutrients Balance Using Monqi Model (monitoring for Quality Improvement) in a Rice Based Cropping System of Kano State, Nigeria

Abdulrahman B. L.*

Enhancing soil microbial properties through balanced inputs of organic and inorganic amendments are key to sustainable soil and crop productivity. A laboratory incubation study was conducted to determine microbial respiration, population and nutrient (N and P) mineralization patterns in an Ultisol amended with sole Urea at 56 kg N ha−1 or Urea (at 0 or 28 kg N ha−1) combined with 5 t ha−1 organic ...

Apr, 2023 pp. 35-42 101 views 99 downloads
94
Research Article DOI: 10.67042/njss.2019.8zd33969

Sediment Yield, Detachment, and Runoff from Soil Under Selected Parent Materials in Southeastern Nigeria

Agim L C*, Igwe, C.A

Soil degradation due to water erosion among other causes has been a major problem in southeastern Nigeria, therefore a study was conducted to determine sediment yield, detachment, and runoff from soil under selected parent material in southeastern Nigeria. The objective was to characterize the selected soils in terms of their physical and chemical parameters, carry out rainfall simulation, and to ...

Apr, 2019 pp. 35-44 181 views 289 downloads
95
Research Article DOI: 10.67042/njss.2019.zqps94ez

Evaluation of Selected Soil Structural Properties of Different Land Uses in Oforola, Imo State, Nigeria

Enyioko C. O*, Akande S. O, Kamalu O J., Nwokocha C.C

This study centered on evaluating selected soil structural properties of different land uses in Oforola, Imo State, Nigeria. Soil samples were collected from six different land-use types, namely, secondary forest, bush fallow, bare plot, cassava cultivated plot, oil palm plantation, and grassland vegetation. Soil auger was used to collect soil samples from each of the land use types at two (2) dep...

Apr, 2019 pp. 35-42 198 views 261 downloads
96
Research Article DOI: 10.67042/njss.2017.zy0amwci

Heavy Metal Accumulation in Soil and Subsequent Uptake by Amaranthus (amaranthus Cruentus (l.) Irrigated with Dye Industrial Effluent

Oguntade O. A.*, Adetunji M. T, Jamiu Oladipupo Azeez

This study assessed the impacts of untreated dye effluent collected from three dyeing sites on soil heavy metal accumulation, uptake by root and accumulation in amaranthus shoot. Dye effluents collected at discharge points on the sites were diluted with fresh water at 0 %, 25 %, 50 % and 100 % concentrations. Each dye effluent concentration was applied at the rate of 200 ml three times in a week t...

Apr, 2017 pp. 35-39 189 views 253 downloads
97
Research Article DOI: 10.67042/njss.2011.kxzc8oqy

Effect of Poultry Manure on Soil Chemical Properties and Root Yield of Sweet Potato (ipomoea Batatas (l) Lam) Grown in a Tropical Ultiso

N. A. Onunka*, V.E. Osodeke, Asawalam Damian Okwudiri

A field trial was conducted at National Root Crops Research Institute Umudike in 2004/2005 cropping seasons. The aim was to evaluate the effect of poultry manure applied over time intervals on some soil chemical properties and root yield of Sweet potato. The time intervals were 2 weeks before planting, (WBP), at planting, 2, 4, and 6 weeks after planting (WAP). Sweet potato varieties used were TIS...

Aug, 2011 pp. 35-44 178 views 282 downloads
98
Research Article DOI: 10.67042/njss.2021.rr292eck

Influence of Sesame Varieties and Fertilizer Levels on the Yield of Sesame in Potiskum, Yobe State - Nigeria

Usman, M.*, A. Ali, Olatunji O

Field experiments were carried out in 2018 and 2019 cropping seasons to deter- mine the influence of sesame varieties and fertilizer levels on the yield of sesame in the study area. Treatments consisted of three varieties of sesame (Jigida, NCRIBEN-01M and NCRIBEN-032) and four levels of NPK 15:15:15 fertilizer (0, 50,100 and 150 kg ha-1). Treatments were laid out in a randomized complete block de...

Apr, 2021 pp. 36-43 211 views 329 downloads
99
Research Article DOI: 10.67042/njss.2020.qkwnfqim

Vegetative Growth and Yield Response of Amaranthus Hybridus to Mycorrhizal Fungi (glomus Mosseae) Inoculation, Organic and Micronutrient Fertilizer Application

Edosa, Ifeyinwa Valerie*, Ogbemudia, Imasuen E. E, Yaqub A. E, Ogboghodo, I. A

This study was carried out at the Faculty of Agriculture Teaching and Research farm, University of Benin during the early planting season in April 2016 to evaluate the growth response of Amaranthus hybridus and some soil physical and chemical properties as influenced by organic and micronutrient fertilizers, mycorrhizal inoculum. In this experiment four treatments (poultry manure + cow dung + pig ...

Apr, 2020 pp. 36-41 192 views 337 downloads
100
Research Article DOI: 10.67042/njss.2016.axw5sbjx

Effect of Phosphorus and Sulphur on Oil Content of Sesame Varieties (research Communication)

Jahun H. A.*, Samndi M. A., S. G. Mohammed

Information on phosphorus sulphur fertilizer requirements of some new sesame varieties in Semi-Arid ecological regions is deficient therefore the need to evaluate the effects of P and S has become necessary.Two sets of experiments were carried out to evaluate the effect of phosphorus and sulphur on the oil content of sesame (Sesame indicum L.). The experiment was conducted during 2009 raining seas...

Apr, 2016 pp. 36-40 187 views 241 downloads