Volume 31, Issue 2 (August)

Articles in this Issue

15 articles
1
Research Article

Evaluation of Soils on a Toposequence Formed from the Coastal Plain Sands of the Imo River Basin, Southeastern Nigeria

Madueke, C.O*, Nnabude, P.C., Okore, I.K, Onunwa A.O., Madueke, E.C, Okafor, M.J, Nnabuihe, E, Nwosu, T.V

Due to the increasing land degradation in southeastern Nigeria – with particular reference to the ubiquitous gully network in the region – selected soils formed from the Coastal Plain Sands of the Imo River Basin were evaluated and char- acterized to determine their potentials and capabilities. , Three profile pits were consequently dug on the upper slope (Umuariam), -mid-slope (Umulogho), and foo...

Aug, 2021 pp. 1-9 276 views 601 downloads
2
Research Article

Comparing the Effect of Biological Amendments and Chemical Fertilizer on Bacterial and Fungal Population

Edosa, Ifeyinwa Valerie1*, Aleladia B. O, Osarhiemen, V. O.

Amelioration of degraded soils has triggered interest regarding alternatives to supply nutrient and improve microbial diversity through the integrated use of organic manure and biofertilizers. In this light, a screenhouse experiment set in a completely randomized design (CRD) with seven (7) treatments, Bacillus thurin- giensis (5 ml), digestate (22.4 t ha-1), 50% of digestate + NPK 15:15:15 (11.2 ...

Aug, 2021 pp. 10-15 260 views 514 downloads
3
Research Article

Soil Survey and Land Capability Evaluation for Sustainable Crop Production in Abocho, Dekina Local Government Area of Kogi State

Adesemuyi E.A*, Ichigboja, David, Chukwu, G. O., Olayinka Ojetade

A survey of soils of Abocho, Dekina Local Government Area of Kogi State, was conducted to characterize, classify and assess the potentials of the soils for sustainable crop production. The area was reconnoitered and three representative profile pits were dug and described according to international procedures and standard methods. Soil samples were analyzed for their physical and chemical properti...

Aug, 2021 pp. 16-24 298 views 659 downloads
4
Research Article

Soil Vulnerability and Degradation Assessment of Mountainous Area in Ekoli - Edda, South - East Nigeria

Ekpe, I I*, Oludare C. G,, Oti, N.N, Ishiusah O. W,, Egboka, N.T, Orji A., Nwankwo V.C.

Soil vulnerability and degradation assessment of the mountainous area in Ekoli-Edda, South-East Nigeria was carried out on four experimental sites namely Egu, Ugwuelu 1, Ugwuelu 2, and Ocha. The slope of each study site was divided into three namely summit, mid-slope, and foot slope, and slope attributes were measured. Two profile pits were sunk equidistance apart at each of the slope positions an...

Aug, 2021 pp. 25-31 268 views 536 downloads
5
Research Article

Soil Mapping, Classification and Morphological Characteristics of the University of Benin Land

Okunsebor, F.E.*, Umweni A. S.

This study was conducted to map, and classify the soils of University of Benin Teaching, Research and Integrated Farm site. Rigid grid soil survey method at an intensive scale was done on a 62-hectare land that produced seven mapping units. In each mapping unit, a representative pedon was sunk, described and sampled. Soil samples were analyzed using standard methods. Data generated were ana- lyzed...

Aug, 2021 pp. 32-40 313 views 849 downloads
6
Research Article

Effect of Time of Seed - Bed Preparation on Soil Properties and Performance of Water Yam in Owerri Southeast, Nigeria

Ekpe, I I*, Oti, N.N, Ishiusah O. W,, Egboka, N.T, Nwankwo V.C., Iheka, W. C, Aguwa, O U, Orji A.

Field experiment was conducted between the months of February and November, 2016 to evaluate the effect of age of seed-bed preparation on soil properties and performance of water yam in Owerri, southeastern Nigeria. Treatments consisted of four time of seed-bed preparations namely 0, 3, 6, and 9 weeks intervals, laid out in a randomized complete block design (RCBD) with three replications. Se- lec...

Aug, 2021 pp. 41-50 269 views 531 downloads
7
Research Article

Heavy Metal Pollution of Dumpsite Soil of Kogi State University, Ayangba

Agboola K.*, Wahab A. A., Aina O. A, Ameh E. A

The research aims to assess the local addition of selected heavy metals (Pb, Cd, and Cu) when dumpsite soil is used as a soil amendment and the ability of Amaranth (NH536–1) to phytoremediate the soil. It was a pot experiment conducted at Kogi State University's Faculty of Agriculture in Ayangba. The soil samples were collected from a dumpsite and arable soil. The dumpsite soil application to the ...

Aug, 2021 pp. 51-54 274 views 533 downloads
8
Research Article

Variability of Micronutrient Status and Hazard Potential in Soils of Six Mapping Units Within Eastern Part of Kogi State, Nigeria

Ukabiala, M.E, Uzoh I .N*, Kolo J., , Ezeaku, P.I., Akamigbo, F.O.R.

Micronutrient imbalance in some soils is a major challenge for cultivation of crops. Hence the need to assess their status and variability in agricultural soils. The aim of this research was to assess the micro-nutrient status, variability and hazard potential in some soils within eastern part of kogi state of Nigeria. Six mapping units, 2a, 17a, 19a, 19c, 21b and 22b from soil map of Nigeria, whi...

Aug, 2021 pp. 55-63 289 views 548 downloads
9
Research Article

Effect of Water Depth on Eight Varieties of Rice in Obukiyo, Oju Lga of Benue State, Nigeria

Ogbu O. J*, Usman, J., Afatar S., Ojowu J.A

Water depth has been described as one of the most important environmental factors determining the growth and yield of rice. Different rice varieties respond differently to various water levels. Three (3) naturally existing water levels (5cm, 10cm and 15cm) at Obukyo Oju Local Government Area of Benue State were studied to evaluate their impact on eight varieties of rice (FARO 15, 37, 44, 52, 57, 6...

Aug, 2021 pp. 64-75 241 views 535 downloads
10
Research Article

Characterization and Identification of Contemporary Diagnostic (b) Horizons of Some Soils in Ideato North Local Government Area of Imo State Southeastern Nigeria

Onyekanne, C. F.*, Uzoh I .N, , Ezeaku, P.I., Akamigbo, F.O.R.

Most soils in Nigeria have not been characterized and classified based on diag- nostic B horizon and identification of diagnostic B horizon is essential in the study of soils. As a result, this study was carried out to characterize and classify these soils with special emphasis on the identification of diagnostic B- horizons. A free survey method was employed to locate the representative profiles....

Aug, 2021 pp. 76-86 242 views 573 downloads
11
Research Article

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

Koyejo, A.O*, Koyejo, O.A, 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. 87-93 242 views 557 downloads
12
Research Article

Properties and Sustainable Management of the Inland Wetland Soils for Efficient Rice Production in Southern Guinea Savanna Zone of Nigeria

Ogbu O. J,*, Usman, J., Orohu T. O, Onah J.E.

A pedological study was carried out on some inland wetland soils of Obukiyo, Oju Local Government Area of Benue State, Nigeria to identify their properties and suggest sustainable management practices for the soils. The grid method of soil survey was employed in the field to investigate the morphological and physicochemical properties of the soils. Four soil units were identified on the field base...

Aug, 2021 pp. 94-101 233 views 564 downloads
13
Research Article

Effect of Different pH Levels on Adsorption and Desorption of Pb in Contrasting Parent Materials of South Eastern Agro Climatic Zone of Nigeria

Nkwopara, U. N.*, Onwudike S,U., Ihem, E.E, Osisi A. F, Egboka, N.T

Lead adsorption and desorption at different pH levels in acid soils of diverse par- ent materials were evaluated. The soil samples were collected from soils under- lain by olivine basalt (Ikom), coastal plain sands (Ihiagwa) and false bedded sandstone (Ishiagu). The collected samples were air -dried, crushed, sieved with a 2 mm sieve and analyzed in the laboratory. The adsorption of lead (Pb) incr...

Aug, 2021 pp. 102-108 269 views 535 downloads
14
Research Article

Soil Erosion Risk Assessment: a Case Study of the Jos Plateau, Nigeria

Ayodele Owonubi*

Soil erosion is a treat to global food security. The objective of this study was to evaluate factors influencing erosion on the arable lands of the Jos Plateau, and to estimate the extent of soil erosion in the area. Universal Soil Loss Equation (USLE) model was used to evaluate soil erosion processes in the study area. This was facilitated with the aid of Geographic Information System Both for In...

Aug, 2021 pp. 109-117 321 views 692 downloads
15
Research Article

Dynamics in Physico–chemical Properties of Soils Under Oil Palm Plantations of Different Ages

Olufemi Adewale Osinuga*

This research investigated the changes in the physicochemical properties of soils under oil palm plantations of different ages. Soil surface (0-20 cm) and subsurface (20-40 cm) samples have been obtained from various ages of oil palm plantations (0-5, 5-10, 10-15 and, 15-20 years). Two distinct samples were taken on the same farm, under alleys and heaped pruned fronds. Soil samples used as a stand...

Aug, 2021 pp. 118-124 297 views 616 downloads
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