Volume 34

Volume 34 (2025)

Published in 2025

Issues in this Volume

Issue 2 (August)

Issue 1 (April)

Articles in this Volume

13 articles
1
Research Article

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

Jidere, C.M.*, Ezeokoye, C.S., Obalum, S.E., 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
2
Research Article

Effect of NPK and poultry manure on selected soil properties, and performance of snake tomato (Trichosanthes cucumerina) in Wukari, Taraba State, Northeastern Nigeria

Waziah Y.*, JOHN WAMARHYEL GUNDIRI

This study was conducted to investigate the effect of NPK and poultry manure (PM) on selected soil properties and performance of snake tomato. The experiment was laid out in a randomized, complete block design with four treatments and three replicates. The treatments are 240 kg/ha NPK 15:15:15, 20 tons/ha PM, 120 kg/ha NPK 15:15:15 + 10 tons/ha PM, and control. The soil was loamy sand with low OC,...

Aug, 2025 pp. 1-6
3
Research Article

Properties and land suitability evaluation of selected soils of Umueje, south- east Nigeria for yam (Discorea spp.) and oil palm (Elaeis guinensis) cultivation

Adesemuyi, Emmanuel Adeboye*, Nwaoba, Okeize Williams, Okonkwo, Ezekiel Iloabuchi, Iroha, Jude Nnayere

The study was conducted to characterize and assess land suitability of selected soils of Umueje, Ayamelum LGA, Anambra State Nigeria with a view to making adequate management practices for sustainable production of yam (Discorea spp.) and oil palm (Elaeis guinensis) in the area. Three mapping units (ANU1, ANU2 and ANU3) were delineated using the transect method with several auger investigations. F...

Aug, 2025 pp. 15-33
4
Research Article

Use of erodibility indices in assessing soil erosion in central and northern Cross River State, Nigeria

Akpa E A*, Okon P O, Abam P O, Sunday L. K

Soil erodibility indices were used to assess erosion prone areas in central and northern Cross River State, Nigeria. Fourteen (14) composite soil samples were collected at a depth of 0-30 cm and analyzed using standard laboratory procedures. Results showed that the soils are coarse textured with high sand content dominated by textural class of loamy sand in both the central and northern. The vulne...

Aug, 2025 pp. 7-14
5
Research Article

Optimization of N, P and K Fertilization for Orange-Fleshed Sweet Potato (Ipomoea batatas (L) Lam) Production at Ikwo Abakaliki, Southeast Nigeria

Iroegbu, C.S.*, Asawalam, D.O, V.E. Osodeke

Orange-fleshed Sweet potato (Ipomoea batatas (L) Lam) is one of the most important crops for human consumption and livestock feed. All parts of the plant are useful for human consumption, animal feed and industrial uses. This research was conducted on a degraded Ultisol at the Teaching and Research Farm, Faculty of Agriculture, Alex Ekwueme Federal University, Ndufu-Alike (AEFUNAI), Abakaliki Ebon...

Aug, 2025 pp. 43-52
6
Research Article

Sole and combined effects of Mexican sunflower, cabbage residue, and poultry manure on soil chemical properties, growth, and yield of golden melon (Cucumis melo L.) in a derived savanna ecology of Nigeria

Adekiya, A.O*, Aboyeji, C. M, Gbadamosi, A.

Hitherto, the knowledge about the effect of mexican sunflower, cabbage residue, and poultry manure residues in the soil chemical conditions is still limited. Hence, a field experiment was carried out in 2020 to assess the effects of sole and combined applications of mexican sunflower (Tithonia diversifolia) leaves, cabbage (Brassica oleracea) residue and poultry manure on soil chemical properties ...

Apr, 2025 pp. 30-36
7
Research Article

Soil organic matter and soil structural stability under different landuses in Koupendri catchment, Benin Republic

Azuka, C.V.*, Nwite, J.N, Obi, M. E., Igué, A. M.

Knowledge of contribution of land use to sustenance of soil organic matter (SOM) and soil structural stability is crucial to management of tropical soils for optimization of ecosystem services. The study evaluated SOM and soil structural stability in maize-sorghum (MS), fallow shrub land (FL) and rice field (RF) in Koupendri catchment, Benin Republic from which representative composite soil sample...

Apr, 2025 pp. 17-29
8
Research Article

Comparative effects of organic manure and inorganic fertilizer as nitrogen sources on leaf nutrient content and nitrogen use efficiency of cotton

Omadewu, L.I.*, Kefas, P. K, Ukatu, P O, Abednego, C., Solomon Rejoice Ibrahim

A field experiment was conducted at the Research Farm of the College of Agriculture Jalingo, Taraba State in two planting seasons (2020 and 2021) to determine the influence of nitrogen sources and rates on nutrient concentration in leaf and nitrogen use efficiency of cotton. The experiment was a 5x4 factorial of four nitrogen sources (poultry manure, organo-mineral fertilizer, urea and NPK15:15:15...

Apr, 2025 pp. 37-45
9
Research Article

Instrumentation in Soil Science: An advanced overview

Suleiman Usman*, James O. Jayeoba, Sani Mathew Amana

This paper provides an overview of what soil science instruments entail in the global academic environment. This paper focused on developments in advanced soil science equipment with a specific compilation of forty (40) different instruments and their brief application. These sets of instruments are found to be applicable in soil science based on (a) optical methods, which focus on the measurement...

Apr, 2025 pp. 46-53
10
Research Article

Remediation of petroleum polluted soils with organic manures and inorganic fertilizer and its effect on fluted pumpkin (Telefeira occidentalis) in Bayelsa State

Teknikio, J. B*, Diri, K. H, Unabor, E.

Growth parameters of fluted pumpkin (Telefeira occidentalis) were examined to assess the effectiveness of remediating crude oil-polluted soils on application of organic manures and inorganic fertilizer in enhancing hydrocarbon-degrading bacteria (HDB) used in the bioremediation process in Bayelsa State. Two locations, Imiringi and Koloama, in Ogbia and Southern Ijaw Local Government Areas, respect...

Apr, 2025 pp. 68-78
11
Research Article

Effects of NPK fertilizer on growth and yield of Nigerian turmeric (Curcuma longa linn.) germplasm in coastal rainforest ecology of Nigeria

Ekwere, E.O.*, Baiyeri, K.P, Ogbonna, P.E, Olojede, A. O, Ekwere, U.A.

The study investigated the responses of 10 Turmeric Nigerian Curcuma Longa (NCL) Germplasm, to NPK nutrient rates and its effect on some soil properties. The experiment laid out, was a 3 x 10 factorial in RCBD, to evaluate the growth and yield performance on coastal rainforest soil in Nigeria. The following data were collected: soil physico-chemical properties, tiller count, leaf area (cm2), plant...

Apr, 2025 pp. 1-10
12
Research Article

Geostatistical investigation and GIS-based spatial distribution of some micronutrients in Wukari soils, Taraba State, Nigeria

Waizah, Y.*, Adashu Tanko Gani

Mapping soil fertility is important for site-specific nutrient management, it gives an insight into soil nutrient content, which is crucial for land use planning, fertilizer recommendations, and sustainable management of soil resources. Micronutrient deficiency in the soil is a serious limitation for crop production. Evaluation and mapping the soil micronutrients of a particular area can be a poss...

Apr, 2025 pp. 11-16
13
Research Article

Using Urea Intercalated Biochar and Organic Fertilizer as Soil Management Option Part 2: Its interactive Effects with Soil Moisture and Compaction on Soil Properties and Carbon Emission

Tijani F. O.*, Adewumi T. M., Abdulraman O. A., Oyebola O. K., Adebayo A. A., Amosun E. O., Oyedele D. J.

Soil response including carbon dioxide emission under the combination of compaction, fertilizer and soil moisture were investigated in a screenhouse. The factorial experiment consisted of two levels of moisture contents (50% and 70% field capacity, FC), three levels of compaction (0, 2 and 4 kg weights) and fertilizer treatments consisted of control, biochar, organic fertilizer + urea (FertC), ure...

Apr, 2025 pp. 54-67
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