Articles | Nigerian Journal of Soil Science

11

Research Article DOI: 10.67042/njss.2020.eudsfo6e

Comparative Effects of Sole and Combined Application of Organic and Inorganic Fertilizer on Soil Quality and Rubber Seedling Performance at Edo State Iyanomo, Nigeria

Izevbigie F. C^*, Ogboghodo, I. A, Orhue E. R., Ogbemudia, Okundia R.O., Eseimude U.

A field experiment was conducted at Rubber Research Institute of Nigeria, Edo state Iyanomo during the 2014 wet season to determine the comparative effects of the sole and combined application of organic and inorganic fertilizer on soil, and Rubber seedling performance and the experiment consisted of six treatments. The treatments were laid in a Randomized Complete Block Design (RCBD) with three r...

Aug, 2020 pp. 1-9 193 views 255 downloads

12

Research Article DOI: 10.67042/njss.2020.uojmcq2g

Effect of Particle Size Biochar (rhizophora Racemose) of Red Mangrove on Bacteria Population in Crude Oil - Contaminated Soil.

Teknikio, J. B^*, Tate, Joseph O., Pureaziba, Nelson

Soils contaminated at different levels of crude oil were amended with two- particle-sized fractions of red mangrove biochar [ mm (B1) and 4 mm (B2)] from locally pyrolyzed red mangrove in earthen kiln and incorporated at five different rates (1, 2, 3, 4 and 6 mg ha-1) in the Teaching and Research Farm, Faculty of Agriculture, Niger Delta University, Bayelsa State, were assessed on the fate of bact...

Apr, 2020 pp. 1-7 178 views 279 downloads

13

Research Article DOI: 10.67042/njss.2019.44uhlzm4

Seasonal Inventory of Heavy Metals on Vehicular Polluted Soils and Roadside Distance Supporting Arable Crop Production in Umuahia Metropolis, Nigeria

Ernest U. Eteng^*

This study was conducted between February and September, 2018 to evaluate heavy metal concentrations of road dust soils supporting arable crop production along five major roads connecting the Umuahia Metropolis to surrounding cities. Thirty soil samples from five major roads were collected during the dry and wet seasons at 10 m, 20 m and 30 m distances from road edges. The heavy metals were analyz...

Apr, 2019 pp. 1-9 165 views 260 downloads

14

Research Article DOI: 10.67042/njss.2018.dk14gie6

Geospatial Distribution of Some Phosphorus and Potassium Forms as Influenced by Period of Irrigation in the Kano River and the Hadejia Valley Irrigation Schemes, Nigeria.

Dawaki M. U.^*, Haruna K. A., Samndi M. A.

This study was carried out at Kano River Irrigation Project (KRIP) (latitudes 11º 36ʹ 0.05ʺ N to 11º 49ʹ 57.97ʺ N and longitudes 8º 28ʹ 17.02ʺ E to 8º 29ʹ 41.82ʺ E) and Hadejia Valley Irrigation Project (HVIP) (latitudes 12º 17ʹ 48.75ʺ N to 12º 24ʹ 58.28ʺ N and longitudes 9º 51ʹ 31.29ʺ E to 10º 2ʹ17.42ʺ E). The soils are largely deep, well-drained Calcic Luvisols. The aim was to assess the geospat...

Aug, 2018 pp. 1-11 175 views 264 downloads

15

Research Article DOI: 10.67042/njss.2015.avos1das

Some Physical Properties of Soils Overlying Limestone Parent Material in Southeastern Nigeria

E. E. Aki^*, Antigha, N.R.B.

The physical properties of nine (9)pedons of soils derived from limestone parent materials in South Eastern Nigeria were investigated. The percentage of total sand generally decreased with increase in profile depth with total sand for the surface horizons of 61% and 47% for the subsurface hori- zons. Silt percentage for the surface horizons range between 7.0 % and 48%, for subsurface 7.0% and 48%....

Apr, 2015 pp. 1-7 188 views 278 downloads

16

Research Article DOI: 10.67042/njss.2014.997h35pt

Characterization and Classification of Obudu Mountains Steep Hillside Soils.

ESSOKA A. N.^*, ESSOKA P. A

Soil characterization helps us understand soils better which leads to their classification into categories. The steep hillside soils of three Obudu mountain ranges were selected for profile study for their morphological and physicochemical properties at Belekete, Bottom Hill and Belinge. The soils were well-drained and deeply weathered. The mean percentage of sand, silt and clay were 54 %, 59 % an...

Apr, 2014 pp. 1-12 240 views 429 downloads

17

Research Article DOI: 10.67042/njss.2013.in8snh5b

Assessment of Dithionite and Oxalate Extractable Iron and Aluminium Oxides in Soils Supporting Raphia Palms at Nifor Main Station

OSAYANDE P.E.^*, P.O. Oviasogie, Aisueni N.O., Stephen O., Irhemu P., M.O. Ekebafe

The oxides of iron and aluminium are known to affect the physical and chemical properties of soils such as ion adsorption, aggregate stability, phosphorus sorption and charge characteristics. This study was conducted to provide information on the status of free oxides in both soils of the Inland Valley and a well drained Upland soil at the NIFOR main station. Twenty four (24) representative sample...

Aug, 2013 pp. 1-9 209 views 297 downloads

18

Research Article DOI: 10.67042/njss.2013.nwwvtzcs

Assessment of the Metallic Micronutrient Elements in the Benchmark Soils of Savanna Regions, North - East Nigeria

Wapa J. M^*, B. T. Olowookere

The status of metallic micronutrient elements extractable in 0.005M DTPA was assessed in 31 locations across the North-east Nigeria which comprises of six states (Adamawa, Bauchi, Borno, Gombe, Taraba and Yobe). Composite surface (0-20cm) and sub-surface (20-50cm) soil samples were collected from areas having different parent materials, vegetation zones and soil texture. The soil samples were anal...

Apr, 2013 pp. 1-9 188 views 277 downloads

19

Research Article DOI: 10.67042/njss.2011.zzosd1zi

Influence of Sodium and Potassium Fertilizers on Growth and Nutrient Contents of Tomato Plant in South Western Nigeria

Idowu M. K^*

The influence of sodium (Na) and potassium (K) on growth and nutrient content of tomato was investigated on the field between 2003 and 2004 at the Teaching and Research Farm, Obafemi Awolowo University. The experiment was a 4 x 3 factorial arranged in Randomized Complete Block Design (RCBD) with three replications. The factors and levels were 0, 4, 16 and 32 mg Na kg-1 soil and 0, 64 and 128 mg K ...

Aug, 2011 pp. 1-12 214 views 278 downloads

20

Research Article DOI: 10.67042/njss.2023.e062k0ea

Changes in Soil Physical Properties Due to Variable Weather Conditions Under Two Soil Types in South Western Nigeria

Ologunde O.H.^*, Adebayo O.E., Busari M. A.

Soil physical properties changes with weather conditions over time. The degree of variation might be influenced by different soil textural classes. This study aimed at understanding the changes in soil physical with varying weather conditions under two soil textures. The research was conducted in cassava fields at the Federal University of Agriculture, Abeokuta and Psaltry International Limited, I...

Apr, 2023 pp. 6-14 127 views 106 downloads