409 articles
21
Research Article DOI: 10.67042/njss.2021.yq0enep0

Influence of Land Use on Soil Physiochemical Properties in Semi - Humid Nsukka Area of Southeast - Ern Nigeria

Umeobi E. C*, Peter I. Ezeaku, Umeugokwe C. P, V. I. Ezeaku

The influence of four land uses (cultivated arable land, grassland, oil palm planta- tion and rubber plantation) on physical and chemical properties of coarse- textured acid soils was assessed in the semi-humid Nsukka area. Soil auger and core samples were used to achieve surface sampling at the depth intervals of 0-20 and 20-40cm in each land use type. Four diagnostic horizons were identified and...

Dec, 2021 pp. 6-17 221 views 286 downloads
22
Research Article DOI: 10.67042/njss.2025.0wv1lbb4

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. 7-14 272 views 334 downloads
23
Research Article DOI: 10.67042/njss.2022.u9la9iaf

Effects of Plant Mulch and Vine Care on the Growth and Yield of Cucumber (cucumis Sativus L.)

Abidemi, A. A*, Ewulo Babatunde Sunday, Aiyelari, O. P., Jiandong H.

Field experiments were conducted during the 2015 cropping seasons on a farmer’s farm, Abeokuta, Ogun State, Nigeria to study the effects of plant mulch and vine care on soil properties, leaf nutrient content, growth, and yield cucumber (Cucumis sativus L.). Plant mulch was applied as zero mulch (0 t ha-1 ), Tithonia diversifolia (10 t ha-1 ), Chromolaena odorata (10 t ha-1 ) and vine care as no st...

Apr, 2022 pp. 7-18 187 views 277 downloads
24
Research Article DOI: 10.67042/njss.2019.ws2uceqh

Land Suitability Evaluation of the Wetland Soils of Obukiyo, Oju Lga of Benue State, Nigeria for Rice (oryza Sativa) Production

Ogbu O. J,*, Idoga S., Abagyeh S. O. I, Usman, J.

The inland wetland soils of Obukiyo, Oju Local Government Area of Benue State, Nigeria were evaluated for the production of rice. The physical, chemical and morphological features of the soils were matched with the requirements of the crop (rice), and the overall suitability rating of the soils was obtained using limitation method. Unit 1 soils were rated as marginally suitable (S3) for rice produ...

Aug, 2019 pp. 7-17 188 views 274 downloads
25
Research Article DOI: 10.67042/njss.2020.9z01n692

Effect of Biochar on Available Phosphorus Status in Alfisols Derived from Charnockite in Ekiti State, Nigeria

Ilori, A. O. A.,*, Shittu O.S., Ayodele, O. J., Awe, G.O., Oso, A. O.

Biochar, a carbon-rich product of pyrolyzed biomass, has been used as an amend- ment to improve the properties of marginal highly-weathered soils in the tropics characterized by widespread phosphorus (P) deficiency. Alfisols derived from charnockite in Ekiti State are typically deficient in available phosphorus. Two alfisols from Ire-Ekiti and Ijan-Ekiti were amended with 0 (P-only), 5, 10 and 20%...

Apr, 2020 pp. 8-14 184 views 279 downloads
26
Research Article DOI: 10.67042/njss.2016.4fn92ogs

Determination of Some Soil Physico - Chemical Properties of an Ultisol as Influenced by Npk Fertilizer and Cropping Ratios of Maize (zea Mays L. ) – Egusi Melon (citrullus Colocynthis Hook L.) in Rainforest Area of Nigeria

Ehigiator J.O.*, Okunima D.E., G.O. Iremiren, I. W. Oghiren

Field experiments were conducted (2009, 2010, 2011) at the Teaching and Research Farmland of the University of Benin to determine the effectof seven ratios (1:0, 0:1, 1:1, 2:1, 3:1, 1:2 and 1:3) of maize-egusi melon intercrop under four (0, 200, 400, 600 kg/ha) and six (0, 200, 400, 800, 1000 kg/ ha) levels of NPK fertilizers on some soil properties of an utilsol in Benin City, Nigeria. The result...

Apr, 2016 pp. 8-16 185 views 242 downloads
27
Research Article DOI: 10.67042/njss.2015.wvovzgtu

Yield Decline of Major Crops Induced by Erosion on the Ultisols of Owerri, Southeastern Nigeria: Maize Response to Natural Erosion

Oti, N.N*

Few studies have been made to quantify the yield decline trends of major stable crops induced by erosion (natural and artificial) on the ultisols of Southeastern Nigeria, it is known that erosion’s impact on soil productivity is crop, environment and soil specific. This paper reports an aspect of a larger body of research work conducted between 1996 and 2002 to document erosion – in- duced product...

Apr, 2015 pp. 8-19 168 views 266 downloads
28
Research Article DOI: 10.67042/njss.2020.nn3ofyau

Assessment of the Responsiveness of Soybean Varieties to Bradyrhizobium Japonicum Inoculation in Ogbomoso, Southwest Nigeria

Olaboopo, M. T., Kolawole, G. O.*

Soybean varieties may respond differently to rhizobium inoculation, for im- proved yield and nitrogen fixation. Therefore, responses of ten soybean varieties to rhizobium were evaluated in 2018 at the Ladoke Akintola University of Tech- nology, Ogbomoso, Nigeria, to determine if rhizobium will improve the perfor- mance of the varieties. The soybean varieties (main plot) and rhizobium (+ or -, subp...

Dec, 2020 pp. 9-16 184 views 275 downloads
29
Research Article DOI: 10.67042/njss.2020.tj5m9h46

Assessment of the Responsiveness of Soybean Varieties to Bradyrhizobium Japonicum Inoculation in Ogbomoso, Southwest Nigeria

Olaboopo, M. T.*

Soybean varieties may respond differently to rhizobium inoculation, for im- proved yield and nitrogen fixation. Therefore, responses of ten soybean varieties to rhizobium were evaluated in 2018 at the Ladoke Akintola University of Tech- nology, Ogbomoso, Nigeria, to determine if rhizobium will improve the perfor- mance of the varieties. The soybean varieties (main plot) and rhizobium (+ or -, subp...

Aug, 2020 pp. 9-16 176 views 264 downloads
30
Research Article DOI: 10.67042/njss.2022.jxamugt5

Influence of Oil Palm Cultivation on Topsoil Properties in Nigerian Institute for Oil Palm Research, Akwa Ibom State

Chukwu E. D*, B. T. Udoh, Afangide, A. I, Osisi A. F

The thin layer of soil covering the surface of the earth represents the difference between survival and extinction for most land-based life. Four oil palm blocks of varying ages: 57 years (B-57), 39 years (B-39), 17 years (B-17), and no oil palm block (B-0), which served as the control, were identified and used for the study. The result showed that in B-0, B-17, B-39 and B-57, 7 (22.58%), 10 (32.2...

Aug, 2022 pp. 10-13 203 views 262 downloads