Articles | Nigerian Journal of Soil Science

11

Research Article DOI: 10.67042/njss.2020.5i7khluu

Genotypic Effect of Groundnut on Nodulation, N Fixation and N Balance in the Two Savannahs of Nigeria

Moji K.T^*, Jibrin M. J., Umar F. G., Abubakar U. D

Identification of high N-fixing groundnut genotypes and integrating them into the prevailing cereal-based cropping systems can reduce the need for nitrogen (N) fertilizers, thus minimizing their high cost and associated environmental consequences. This study was conducted to estimate the amount of symbiotically fixed N by groundnut genotypes and its contribution to soil N and yield of groundnut. T...

Apr, 2020 pp. 25-35 224 views 260 downloads

12

Research Article DOI: 10.67042/njss.2026.qh2elhal

Effect of Npk, Mg, Biochar. Compost and Oil-Palm Waste in Prenursery Oil-Palm Seedling Production

AONDONA O.^*, EZEKIEL AKINKUNMI AKINRINDE

The effectiveness of organic fertilizer materials (decomposed Empty Fruit Bunch, EFB: Sunflower Compost, SFC; Palm-Oil Mill-Effluent, POME, Palm Kernel Cake, PKC and Biochar) for the production of oil-palm seedlings at the pre-nursery (four-month stage) were evaluated, using NPK Mg 12:12:17:2 as reference. In an initial pot experiment (employing 2 kg soil samples per 2.5 x 25 cm2 polythene bag), r...

Mar, 2026 pp. 100-107 219 views 358 downloads

13

Research Article DOI: 10.67042/njss.2016.7yuqt401

Characterization and Taxonomic Classification of Some Basement Complex Soils in Kwara State

Bashiru Ademola Raji^*

The soils of the Oyun Local Government Area of Kwara State were studied with the aim of characterizing and classifying them to provide the needed inputs into the Agricultural Transformation Agenda of the Government. Six soil mapping units were identified and designated YN1, YN2, YN3, YN4, YN5 and YN6. The soils were all formed on basement complex rocks, had deep weathered pedons and lateritic laye...

Apr, 2016 pp. 87-100 219 views 215 downloads

14

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. 1-12 219 views 420 downloads

15

Research Article DOI: 10.67042/njss.2019.a204vl9x

Comparative Yield of Bell Pepper (capsicum Annuum L.) on Different Soil Series in Ibadan, Southwestern Nigeria

Olufunmi O. O^*, Adeoye G. O

Climatic change and its accompanying adverse effects on the cultivation of crops such as bell pepper - an important fruit vegetable requires adaptable technology strategy at low or no cost to poor resource farmers. Growing bell pepper on soils considered less suitable could be an adaptation strategy to mitigate the effect of climate change on bell pepper production. Field trials were conducted at ...

Apr, 2019 pp. 21-26 215 views 314 downloads

16

Research Article DOI: 10.67042/njss.2025.egqk538q

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. 1-10 214 views 278 downloads

17

Research Article DOI: 10.67042/njss.2022.j8xtup2a

Characterization, Classification and Suitability Evaluation of Soils on Three Geological Formations in Nsukka Area of Enugu State for Pepper Production

Umeugokwe C. P^*, Ajoagu G. M, Asadu, C.L.A

This study aimed to characterize, classify, and evaluate the soils on three geological formations in Nsukka, Eastern Nigeria for pepper production. The geological formations included Upper Coal Measure (UCM), False Bedded Sandstone (FBS), and Nkporo Shale (NS). Three pedons were excavated to represent each of these geological formations. Soil properties were determined using appropriate methods. T...

Aug, 2022 pp. 95-104 214 views 263 downloads

18

Research Article DOI: 10.67042/njss.2017.ef1k6d3t

Seasonal and Fertiliser Effect on the Yield of Bell Pepper (capsicum Annuum L.) in Ibadan, South Western Nigeria

Olufunmi O. O.^*, Adeoye G. O

Emerging supply crisis in the food chain of crops such as Bell pepper (Capsicum annuum L.) from traditionally major producing areas of Southern and Northern guinea savannah of Nigeria to other parts of the country makes it expedient to cultivate the crop under different weather conditions and fertiliser requirements. Field trials were conducted in Ibadan, South western Nigeria (derived savannah ag...

Apr, 2017 pp. 22-27 213 views 388 downloads

19

Research Article DOI: 10.67042/njss.2021.dmvzsuqz

Local Soil Classification [Soil Association/Soil Slope–Soil Series], World Reference Base, and Usda Soil Taxonomy: Roles in Soil Survey Execution.

Okusami, Temitope A.^*

The objective was to do a comparative assessment of the best roles of three classification systems, [the “USDA-Soil Taxonomy”, the “World Reference Base (WRB)”, and the presumably Soil Association/Soil Series Concept of Nigeria] in the Soil Survey execution from Soil Mapping through to Soil Survey Report. In this instance, the concern of this paper is mostly what is best applicable when mapping le...

Dec, 2021 pp. 77-86 207 views 353 downloads

20

Research Article DOI: 10.67042/njss.2013.63skbdl4

Evaluation of Npk Fertilizer Formulations on the Growth and Dry Matter Yield of Coffee Seedlings

Ibiremo, O.S.,^*, Akanbi O. S.O., Oloyede A.A., Adebowale L.A

A greenhouse study was carried out at Cocoa Research Institute of Nigeria, Ibadan to evaluate the effect of NPK fertilizer formulations on the growth and dry matter yield of coffee seedlings. The treatments consisted of NUTRICO-1 (NPK-liquid fertilizer) applied at rate 5 and 10 ml/15L water) and NPK- solid fertilizer 15:15:15 applied at 1, 3 and 5g/coffee seedling and a control. Data on growth of ...

Apr, 2013 pp. 22-26 205 views 298 downloads