Articles

Browse our published research articles

409 articles
301
Research Article DOI: 10.67042/njss.2013.ywso2t85

Effects of Poultry Manure and Portland Cement Additions on Soil Physical Properties and Microbial Activities

Ogunrewo O. M.*, Olayinka A.

The topsoil sample (0-15 cm) of the Apomu series (Inceptisol) was amended with three rates each of poultry manure and cement (0, 5.0, 10.0 g / kg) in a 3 x 3 factorial combination. The experiment was carried out in the laboratory at room temperature. The poultry manure and cement were thoroughly mixed by hand with 100 g portions of air-dried, sieved (2 mm) soil samples and allowed to incubate for ...

Aug, 2013 pp. 126-135 187 views 232 downloads
302
Research Article DOI: 10.67042/njss.2019.0vbquzp9

Soil Mineralogical Characterization of Selected Carmine Alfisols and Plinthic Inceptisols of Funtua, Nigeria

Abdulrashid Shobayo Babatunde*, Sulaiman Yau Lawan, Odunze Azubuike Chidowe

This study aimed to characterize the mineralogical properties of soils formed over a basement complex parent material in the Northern Guinea Savanna agro-ecology of Nigeria. The selected study site was in Funtua, Funtua Local Government Area of Katsina State, Nigeria. Soil boundaries were delineated, and three soil individuals were identified, namely, Soil-map-unit-red-deep (SMURD) which covered e...

Apr, 2019 pp. 127-135 189 views 273 downloads
303
Research Article DOI: 10.67042/njss.2011.sopcxh0s

Crop Residue Management Effects on Runoff and Maize Performance in the Guinea Savannah Zone of Nigeria

Ahaneku I. E.*, M. Y. Kasali

The effects of different residue management techniques on runoff, growth and yield of maize (Zea mays. L) were evaluated in a sandy loam soil (Typic haplustalf) at Ilorin, Nigeria, using maize stover as mulch material.Treatments consisted of surface placement and tillage incorporation of residue mulch at the application rates of 2, 4 and 6 t ha-1 , with three replications in a Randomised Complete ...

Aug, 2011 pp. 129-133 165 views 273 downloads
304
Research Article DOI: 10.67042/njss.2013.8q93j2jf

Combined and Sole Application of Compost and Npk Effect on Okra Yield, Soil and Nutrient Content

Law-ogbomo K.E*, OJENIYI STEPHEN OLUSOLA

An on-farm experiment was conducted at Uyinmwendin, Edo State, Nigeria in 2009 and 2010 to study immediate and residual effect of compost alone or combined with NPK fertilizer (NPK) on okra (Abelmoschus esculentus) and nutrient availability. Five treatments applied to okra on ultisol of Benin formation were a control, compost (CM) at 20 and 40 t ha-1, NPK 200 kg ha-1, 20 t ha-1 CM + NPK 100 kg ha-...

Apr, 2013 pp. 130-135 166 views 268 downloads
305
Research Article DOI: 10.67042/njss.2021.v3s2asii

Effect of Water Depth on Four Varieties of Rice in Jangwa Flood Plains, Awe Local Government Area of Nassarawa State, Nigeria

Azagaku E.D.*, Usman J, Ogbu O. J,

A pedological study was carried out on some low-lying land area referred to as Jangwa flood plains with a view to characterized and evaluate the effect of three (3) flood levels namely: toeslope, medium and levee flood levels on growth and yield of four (4) varieties of rice (Faro 44 maturing, FARO 52 and L-19 (FARO 60), medium maturing and late FARO 15 maturing) grown in the area.Field trialsand ...

Dec, 2021 pp. 131-142 179 views 277 downloads
306
Research Article DOI: 10.67042/njss.2018.hfa408k3

Estimating Partial Nutrient Balance Using Nutmon Model in Irrigated Rice - Based Farms of the Nigerian Dry Savanna

Abdulrahman B. L.*, Jibrin Muhammad Jibrin, M. B. Bashir

Soil fertility decline coupled with the failure to conduct soil analysis by the farmers while generating fertilizer recommendations are among the factors that led to low yield especially in the dry Savanna of Nigeria which is characterized by a dramatic increase in population. In this study, the performance of the soils at Bunkure Local Government Area of Kano State that was under irrigation farmi...

Aug, 2018 pp. 131-138 171 views 272 downloads
307
Research Article DOI: 10.67042/njss.2019.2ain6p54

Effect of Land Use Type on Organic C, Physical Properties and Stability Indices of Soils in Nanka Area, Southeast Nigeria

Uzoh I .N*, Igwenagu C.M, Sunday Ewele OBALUM

This study was conducted in Ifite-Nanka, Orumba North L.G.A. in Anambra state, Nigeria. The aim of the research was to evaluate the effect of three land use types on soil organic carbon (SOC) and physical properties and to determine the factors that contributed to the stability of the eroded sites. Horizon variability of these soil parameters was also determined. The result showed that Oil palm pl...

Apr, 2019 pp. 133-140 178 views 274 downloads
308
Research Article DOI: 10.67042/njss.2012.djddxc7o

Shear Strength and Compaction Characteristics of Termite Mound Soil (TMS)

Manuwa S I*, Olawolu O E

Termite mounds are common features of agricultural landscape of the tropical regions of the world, however, published scientific research on TMS in relation to surrounding soil and possible potential of TMS in agricultural production are scarce. The purpose of this study was to investigate effect of moisture content on compaction and shear strength of TMS with a view to comparing it with the surro...

Apr, 2012 pp. 133-140 184 views 47 downloads
309
Research Article DOI: 10.67042/njss.2014.axtkz9qj

Fertility Management Effects on Soil Physical and Chemical Properties Under Long-Term Maize Cropping in an Alfisol in Northern Guinea Savanna Zone

Eche N .M*, Amapu I. Y, Bruns M.A, Odunze Azubuike Chidowe, Uyovbisere E

Long-term productivity and sustainability of agro-ecosystems has been of great concern in agriculture for decades, hence development of various new approaches designed to maintain and protect soil resources in the Nigeria Northern Guinea Savanna. Intensive cultivation of land requires continuous application of inorganic fertilizers, especially N fertilizers and organic amendments to maintain soil ...

Apr, 2014 pp. 134-146 197 views 310 downloads
310
Research Article DOI: 10.67042/njss.2011.vcu0r6vi

Integrated Nutrient Application Effect on Npk Absorption and Root Yield of Sweet Potato (ipomoea Batatas (l) Lam) in a Tropical Ultisol

N. A. Onunka*, V.E. Osodeke, Asawalam Damian Okwudiri, C. N. Ebeniro.

A field trial was conducted at National Root Crops Research Institute, Umudike, Abia State Nigeria, in 2004/2005 cropping seasons. The aim was to determine the effect of integration and time of application of two nutrient sources (poultry manure and inorganic fertilizer) on NPK absorption and root yield of sweet potato in an ultisol. Different rates of the two nutrient sources including a control ...

Aug, 2011 pp. 134-141 165 views 262 downloads