Articles

Browse our published research articles

409 articles
51
Research Article DOI: 10.67042/njss.2016.2wlc4hwm

Effects of Post - Treated and Incubated Gliricidia Biochar Samples on the Growth of Maize Seedlings

Fagbenro J. A.*, Ajilowura J.O., Sangoyomi T.E., Oshunsanya S.O., Aliku Oreva

Biochar (pyrolyzed biomass) has been shown to have potential in increasing crop yield. There is, however, a dearth of information in Nigeria on the effect of post-treated biochar samples on plant growth in different soil types. The objective of this study was to investigate the effectiveness of nutrient-enhanced and incubated Gliricidia biochar on the growth of maize plant. A pot experiment was co...

Aug, 2016 pp. 17-26 163 views 234 downloads
52
Research Article DOI: 10.67042/njss.2013.li1b2tw2

Evaluation of Nutrient Uptake Under Higher Density Planting of Coffee in Derived Savanna Zone of Nigeria

Famaye, A. O.*, AKANBI Olorunfemi Sunday Ojo, Ayegboyin K. O., Adejobi K.B, Idrisu M., Adeosun S.A, Ugioro O, Nduka B. A.

This study was conducted at the Cocoa Research Institute of Nigeria (CRIN), Uhonmora sub-Station in Derived savannah zone of Edo State, Nigeria in 2007 to evaluate the nutrient uptake of coffee at different density of planting. Treatments comprising of four spacing ( 3.0 m x 3.0 m, 2.5 m x 2.5 m, 2.0 m, x 2.0 m and 1.5 m x 1.5 m) with plant populations of 1111, 1600, 2500 and 4444 plants/ha respec...

Apr, 2013 pp. 17-21 214 views 312 downloads
53
Research Article DOI: 10.67042/njss.2021.r6w0lr38

Effect of Slope Positions on Properties of Soils of Some Forest Reserves in South - West Nigeria

Alabi K. O.*

Topography has an influence on soil erosion and consequently on the properties of soils. The effect of slope position on soil properties is of great importance in soil suitability assessment. This study assessed the effect of topographic position on the characteristics of soil of basement complex rocks derived soils under Teak (Tectona grandis) and Gmelina (Gmelina arborea) plantations in Osun sac...

Dec, 2021 pp. 18-24 177 views 222 downloads
54
Research Article DOI: 10.67042/njss.2019.plz91xz4

Characterization and Classification of Soils of Obukiyo, Oju Local Government Area of Benue State, Nigeria

Ogbu, O.J.*, Idoga S., Abagyeh S. O. I, Ugese, F.D, Usman, J.

Soils of Obukiyo, Oju Local Government Area of Benue State were studied using the grid method of soil survey with a view to characterize, classify and evaluate their potentials for sustainable crop production. Four soil units were identified on the field based on soil colour, texture, surface characteristics, topography and depth to water table. Two pits were sunk in each soil unit, described and ...

Aug, 2019 pp. 18-26 206 views 259 downloads
55
Research Article DOI: 10.67042/njss.2012.ifth3ys4

Degradation Effect of Palm Oil Mill Effluent (pome) on Physical and Chemical Properties of the Soils of Uga, South Eastern Nigeria.

Obiageli Patience Umeugochukwu*, Chude, V.O, Peter I. Ezeaku

This study investigated the impact of long term application of palm oil waste on the physical and chemical properties of sandy Ultisols (Arenic Kandiustult) in Uga, Nigeria. Soil samples were collected from the surface (0-10 cm) and subsurface (15-25cm) of the palm oil-polluted site. Another surface (0-10) and subsurface (15-25) samples were collected 15 meters away in the palm oil unpolluted (con...

Apr, 2012 pp. 18-26 194 views 46 downloads
56
Research Article DOI: 10.67042/njss.2022.ipeb11tk

Comparative Effect of NPK Fertilizer, Poultry Manure and Rice Mill Waste on Soil Chemical Properties, Nutrient Content and Performance of Ginger (zingiber Officinale Roscoe) in Umudike, Southeastern Nigeria

Okeke V. N.*, Nwangwu B.C

The study examined the comparative effect of NPK fertilizer, poultry manure and rice mill waste on soil chemical properties, nutrient content and performance of ginger in 2018 and 2019 at the National Root Crops Research Institute Farm, Umudike, Southeastern Nigeria, using ginger variety (UG 1) as the test crop. There were seven treatments consisting of sole and combinations of NPK15:15:15, poultr...

Apr, 2022 pp. 19-24 191 views 357 downloads
57
Research Article DOI: 10.67042/njss.2023.5a4f2sm5

P Sorption Characteristics in Hevea Supporting Soils of Coastal Plain Sand Origin in Southern Nigeria

Idehen, C.N.*, Anthonia Osayanmon BAKARE, Okore, I.K, Osazee, F

Phosphorus (P) is a macronutrient element that plays a number of important roles in plants and soils including Hevea brasiliensis (Natural Rubber). Adequate P nutrition in rubber will result in improved latex production, crop quality, root growth and early maturation. Thus, a study of the relevant indicator of P sorption across depth of rubber supporting soils is necessary. Therefore, this study i...

Apr, 2023 pp. 20-26 127 views 87 downloads
58
Research Article DOI: 10.67042/njss.2021.jx0xkaak

Fertility Status of Biakpan Rubber (hevea Brasiliensis) Soils of Cross River State, Nigeria

Kekong, M. A.*

A study was carried out at Biakpan rubber estate in Cross River State, Nigeria to evaluate the fertility status of the soils. Three profile pits at random points within the estate were sunk representing the crest, the middle slope, and the valley bot- tom. Five samples were collected from each profile at 0 – 25cm, 25 – 50cm, 50 – 75cm, 75 – 110cm and 110 – 170cm depth. Fifteen representative soil ...

Apr, 2021 pp. 20-24 178 views 258 downloads
59
Research Article DOI: 10.67042/njss.2015.s0nb95er

Yield Decline Trends of Eroded Ultisols in Owerri, Southeastern Nigeria: Maize Response to Artificial Erosion

Oti, N.N*

The artificial incremental removal of surface soil to varying depths to simulate erosion followed by subsequent evaluation of crop growth and performance under uniform management is a common agronomic technique to study erosion/soil productivity relationships. However, because its results tend to exaggerate yield decline rates it is being replaced by the more complex erosion phase approach. This p...

Apr, 2015 pp. 20-30 173 views 268 downloads
60
Research Article DOI: 10.67042/njss.2013.m3i3wqjp

Laboratory Incubation Studies of Biochar Amendment on Non - Co2 Greenhouse Gas Emissions from Soil Cultivated to Coconut Seedlings

M.O. Ekebafe*, P.O. Oviasogie, N.O. Asueni

Biochar is a carbon-rich product obtained when biomass such as wood, manure or leaves is heated in a closed vessel with little or no air. It is an appropriate tool for sequestrating carbon dioxide in soils for a long time in order to mitigate climate change. The objective was to determine the effects of biochar amendment on greenhouse gas emissions from soil cultivated to the coconut seedlings. Th...

Aug, 2013 pp. 20-26 167 views 248 downloads