Articles

Browse our published research articles

379 articles
291
Research Article

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. 130-135 289 views 576 downloads
292
Research Article

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. 131-142 262 views 552 downloads
293
Research Article

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

Abdulrahman B. L.*, J. M. 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. 131-138 246 views 531 downloads
294
Research Article

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, Obalum S.E

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. 133-140 300 views 542 downloads
295
Research Article

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. 133-140 314 views 9 downloads
296
Research Article

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. 133-140 321 views 17 downloads
297
Research Article

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. 134-146 292 views 652 downloads
298
Research Article

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, D. O. Asawalam, 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. 134-141 260 views 541 downloads
299
Research Article

Biofortification of Agricultural Effluents on Translocation and Accumulation of Micronutrients Content in Cucumber (cucumis Sativus) Plants Grown in a Coastal Plain Sand Soil South - South Ecological Zone, Nigeria

Ernest U. Eteng*

The study was conducted to evaluate the effects of agricultural effluents on Cu, Fe, Mn and Zn, partitioned in cucumber plants. Eight treatments, cassava mill effluent (CME), palm oil mill effluent (POME), poultry waste effluent PWE and their combinations were biofortified on cucumber plants. Samples were collected from the amended soils and plant parts (roots, shoots and fruits) and analyzed for ...

Aug, 2022 pp. 136-143 239 views 584 downloads
300
Research Article

Evaluation of Agronomic Performance of Maize (zea Mays L.) Under Different Rates of Npk Fertilizer Application in an Ultisol of Lafia, Nassarawa State

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

The study was carried out in Lafia, Nassarawa State with the view to determine the optimum fertilizer rate for maize production among the Ultisols. The hybrid maize, Oba super II was used as a test crop while commercial NPK (15:15:15) fertilizer at the rates of 0: 0: 0, 60: 30: 30, 90: 45: 45, 120: 60: 60 and 150: 75: 75 kg/ha representing 0.48, 0.72, 0.96 and 1.20 kg/ha were applied to the hybrid...

Apr, 2019 pp. 136-141 287 views 550 downloads