Articles

Browse our published research articles

401 articles
261
Research Article DOI: 10.67042/njss.2013.tw68aw64

Fertility Evaluation of Some Soils in Adamawa State, Nigeria

Hassan M.*, Saddiq A. M., A. Ibrahim

Surface (0-25) and sub-surface (25-80) soil samples were collected from Hong, in Hong Local Government and Chouchi plains, Yola South Local Government with the aim of evaluating their fertility status. The soils were evaluated both in the field and laboratory. Results of the analyses showed that sandy loam soils dominated the upper layers, sandy clay loam to clay loam in the lower horizons in Hong...

Apr, 2013 pp. 110-114 540 views 713 downloads
262
Research Article DOI: 10.67042/njss.2012.z7vqwzai

Effect of Npk and Poultry Manure on Cowpea and Soil Nutrient Composition

ABEL OLATUNJI ODEYEMI*, S.A. Ayuba, B.C. Anjembe, OJENIYI STEPHEN OLUSOLA

Field experiment was conducted at University of Agriculture, Makurdi in the Southern Guinea Savanna ecology of Nigeria to test effect of NPK fertilizer and Poultry manure on performance of cowpea and soil nutrient composition. The study conducted in 2008 and 2009 had a control, NPK 20 – 10 – 10 (48 kgha-1) and poultry manure (PM) with or without NPK fertilizer. The test soil was deficient in N and...

Apr, 2012 pp. 110-116 523 views 914 downloads
263
Research Article DOI: 10.67042/njss.2022.j395c7go

Geospatial Distribution of Soil Reaction in Central Southeastern Nigeria

Onyechere A U*, Onweremadu E. U, Aririguzo, B. N, AHUKAEMERE C.M.

The study applied Geographic Information System (GIS) in the Study of Soil Acidity Distribution in Soils of Central Southeastern Nigeria from six different parent materials, namely Imo Clay Shale, Ajali Sandstone, Asu River group, Afikpo Sandstone, Ogwashi-Asaba formation and Bende Ameki formation. Free soil survey method was used to site the eighteen profile pits investigated. The pits were geo-r...

Aug, 2022 pp. 111-116 555 views 710 downloads
264
Research Article DOI: 10.67042/njss.2020.0wccloai

Classification and Fertility Status of Soils on Slopes of Varying Orientations in Umuahia Area of Abia State, Nigeria

Aliba, V.O.*, Onweremadu E. U, Aririguzo, B. N, Okoli N. H

The slope orientation and position of toposequence influence soil properties along the landscape. The study classified and evaluated the fertility status of soils on slopes of varying orientations in Umudike (East-lying Toposequence) and Itu (West-lying Toposequence) located in Olokoro Umuahia, Abia State southeastern Nigeria. Transect soil sampling technique was employed in locating 3 distinct to...

Apr, 2020 pp. 111-123 528 views 726 downloads
265
Research Article DOI: 10.67042/njss.2019.o7ml7j93

Soil Mapping and in - Situ Soil Description of Selected Land Area of Funtua, Nigeria

Abdulrashid Shobayo Babatunde*, Sulaiman Yau Lawan, Tarfa, B.D.

The study was done to delineate soil mapping units and produce the soil map of a selected 10 000 ha land. Landsat imagery of the study area was acquired and used for land cover and land use identification. Digital Elevation Models (DEM) of 10 m resolution was also obtained to produce landforms and contour maps. A 10 000 ha land was delineated from the landform map and divided with grids at 400 m i...

Apr, 2019 pp. 111-126 471 views 655 downloads
266
Research Article DOI: 10.67042/njss.2022.kgj5m2wx

Comparative Effects of Two Formulated Agricultural Wastes and Inorganic Fertilizer on the Performance of Tomato (solanum Lycopersicum L.) on a Derived Savanna Alfisol

Aboyeji, C. M*, Akodu, F. O, Ige, S. A

A potted experiment was conducted during the 2020 and 2021 cropping seasons at the screen house of the Research Farm of the Bio-fuel and Alternate Renewable Energy Ltd, Edidi, Kwara State, in the derived savanna of Nigeria, to compare the effects of two formulated agricultural wastes (kola nut pod and cocoa pod) and NPK fertilizer on the performance of tomato. Treatment includes three levels each ...

Apr, 2022 pp. 112-116 484 views 702 downloads
267
Research Article DOI: 10.67042/njss.2011.iijd0fxt

Effect of Heavy Metal Contamination on Microbial Population, Organic Carbon and Nitrogen Mineralization in Soil Planted to Legumes

Soretire A.A.*, ADESODUN Johnson Kayode, Oludemi, B.M.

This study was carried out to investigate the effects of heavy metal contamination on the microbial population, organic carbon and nitrogen mineralization in the soil planted to legumes. Two heavy metals (Zinc and lead) were used at 150 mg kg -1 and 200 mg kg-1 concentrations respectively. Four legumes (Mucuna, Cowpea, Soyabean and Centrosema) were planted in pots filled with 4 kg of 2 mm sieved s...

Aug, 2011 pp. 112-117 474 views 721 downloads
268
Research Article DOI: 10.67042/njss.2026.hmo1ib1r

Assessment of Soil Organic Matter Determination Techniques in Tropical Soils: Correlation Among Four Methods as Indicators of Plant Growth Potential

Toyin Blessing Odelana*, Adedoyin Adepoju, Oladele Abdulahi Oguntade, Babajide Saheed Kosemani, Adebanke Ayooluwa Olubode, Jamiu Oladipupo Azeez

Soil organic matter (SOM) is a key indicator of soil fertility, yet variability among analytical methods limits its reliable interpretation, particularly in tropical soils. This study evaluated four SOM determination methods—Walkley–Black (WB), loss on ignition (LOI), colorimetric (COL), and hydrogen peroxide (HP)—and examined their relationships with maize growth under contrasting parent material...

May, 2026 pp. 113 - 141 277 views 222 downloads
269
Research Article DOI: 10.67042/njss.2020.qbrphk19

Fertility Capability Classification of Soils Supporting Rice Production in Ebonyi State, Southeastern Nigeria

Obasi S. N.*, Obasi C. C.

This research was carried out to characterized and classify fertility capability to enhance the productivity of rice in Ebonyi soils. Ebonyi state was grouped into three zones according to their agricultural zones namely, Ebonyi north, Ebonyi central and Ebonyi south, representing Abakaliki, Ikwo and Ivo locations, respectively. Major rice growing areas of the soils were located and two profile pi...

Aug, 2020 pp. 113-122 480 views 766 downloads
270
Research Article DOI: 10.67042/njss.2021.5prx0a5a

Effects of Conservation Tillage, Phosphorus and Variety on Selected Soil Physical Properties and Cowpea Productivity at Minna in Nigeria’s Southern Guinea Savanna

Odofin, A.J*, Okpoho, N.A., Bala A.

This study was conducted to evaluate the influence of conservation tillage, inorganic phosphorus fertilizer and variety on soil physical properties and cowpea productivity at Minna in the Southern Guinea Savanna of Nigeria. Three tillage practices (zero, reduced and ridged), three phosphorus rates (0, 30 and 60 kg P2O5 ha-1) and three cowpea varieties (IT93K-452-1, IT99K-573-1-1 and IT90K-277-2) w...

Dec, 2021 pp. 114-122 525 views 712 downloads