Research Papers/Topics in Soil Science

Land evaluation, characterization and classification of soil for the proposed oil palm plantation in Ekpri Ibami, Akamkpa Local Government Area, Nigeria

Land evaluation, characterization and classification of soil for the proposed oil palm plantation in Ekpri Ibami, Akamkpa Local Government Area, Nigeria was conducted on 50 ha of land using a combination of both conventional and digital survey methods. The objective of the research was to characterize, classify and evaluate the land for the proposed oil palm production. Three soil mapping units were identified (EKP I, EKP II and EKP III) and representative profile pits were dug in eac...

The impacts of agroforestry practices on soil fertility in rural areas

ABSTRACTThe concern of humanity is the need to tackle the increasing challenges of severe land degradation and desertification of the ecosystem. The study examined the impacts of agroforestry practices on soil fertility in rural areas of Katsina State, Nigeria. Purposive sampling technique was employed in collecting data from one hundred (100) rural farmers with structured questionnaire administered in two Local Government Areas of Katsina State, namely Batsari and Safana. The data were analy...

Effects of Neem-Based Organic Fertilizer, NPK and Their Combinations on Soil Properties and Growth of Okra (Abelmoschus esculentus) in a Degraded Ultisol of Calabar, Nigeria

A field experiment was conducted at the University of Calabar Teaching and Research Farm toevaluate the effects of neem-based organic fertilizer, NPK and their combinations on soil chemicalproperties and growth of okra (Abelmoschus esculentus) on a degraded Ultisol Calabar. Theexperiment was laid out in a randomized complete block design with three replications comprising ofsix treatments. The treatments were control (no amendment), sole NPK 20:10:10 fertilizer andneem–based organic fertili...

Status and distribution of soil available micronutrients along a hillslope at Ekpri Ibami in Akamkpa Local Government Area of Cross River State, Nigeria

A field study of the status and distribution of available soil micronutrients along a hillslope of EkpriIbami was carried out on a 50 ha land. The aim of the study is to evaluate the micronutrient status anddistribution and their relationship with some selected soil properties. A total of 16 soil samples werecollected from each pedogenic horizons of four profile pits dug along a hillslope classified as upperslope, middle slope, lower slope and valley bottom. The micronutrients determined in t...

Interaction between some soil physicochemical properties and weather variables on sub-humid tropical rainforest soils of Cross River State, Southeastern Nigeria.

The study deals with the interaction between some soil physicochemical properties and weather variables on sub-humid tropical rainforest soils of Cross River State, Southeastern Nigeria. The study aims to determine the interactions between soil properties and weather variables of three land uses occurring on the tropical sandy soils. Soil samples were obtained from 10,000 m2 of UNICAL Teaching and Research farm (Arable farm), Oil palm plantation and Forestry Teaching and Research farm (F...

NODULATION OF COWPEA

Abstract Cowpea (Vigna unguiculata [L]Walp) can obtain nitrogen from the atmosphere by the process of biological nitrogen fixation when associated with specific and effective rhizobia. The purpose of this study was to evaluate the effect of different rates of phosphate fertilizer on nodulation and dry matter yield of cowpea. A Randomized Complete Block Design with four treatments and three replications was used. The trial was conducted on the field. The treatments consisted of different rate...

INFLUENCE OF NITROGEN AND PHOSPHORUS ON NODULATION AND YIELD OF SOYBEAN

AbstractGrain legumes are getting popular all over the world, either because of their high protein or oil content and potential to improve soil fertility. A field study was undertaken with two grain legumes; Soybean and Cowpea, that are economically important in the semi-arid region at the Irrigation Research Farm of Institute for Agricultural Research, Kadawa, Kano in the Sudan Savanna to gain an understanding of fertilizer application rates on nodulation and yields of Soybean (TGx 1904-6F) ...

ASSESSMENT OF SOIL CHEMICAL DEGRADATION UNDER KOLANUT PRODUCTION IN IMOTA LAGOS STATE

ABSTRACTOne of the most serious problems currently affecting agricultural production in developing countries especially Nigeria is land degradation. The adverse effect of land degradation on soil production, soil health and food security is an important current global issue. Hence, this study assessed the chemical degradation of soils under kolanut production with the view of optimizing its production through appropriate management practices that is environmentally friendly and sustainable. S...

ASSESSMENT OF SOIL CHEMICAL DEGRADATION UNDER KOLANUT PRODUCTION IN IMOTA, LAGOS STATE

One of the most serious problems currently affecting agricultural production in developing countries especially Nigeria is land degradation. The adverse effect of land degradation on soil production, soil health and food security is an important current global issue. Hence, this study assessed the chemical degradation of soils under kolanut production with the view of optimizing its production through appropriate management practices that is environmentally friendly and sustainable. Surface (...

DISTRIBUTION OF TOTAL AND EXCHANGEABLE POTASSIUM IN THE TEACHING AND RESEARCH FARM OF FEDERAL UNIVERSITY OF TECHNOLOGY, MINNA

The study was conducted for distribution of total and exchangeable K from different cropping system, yam farm, fallow land and eucalyptus plantation, the sample was collected from the teaching and research farm of the Federal University of Technology at the depth of 0-15cm on the soil surface. The soil samples were collected from nine points along three random sites, the soil where then bulked together. The physical and chemical analysis as carried out, the total and ...