Articles

Browse our published research articles

379 articles
91
Research Article

Effect of Poultry Manure on Soil Chemical Properties and Root Yield of Sweet Potato (ipomoea Batatas (l) Lam) Grown in a Tropical Ultiso

N. A. Onunka*, V.E. Osodeke, D. O. Asawalam

A field trial was conducted at National Root Crops Research Institute Umudike in 2004/2005 cropping seasons. The aim was to evaluate the effect of poultry manure applied over time intervals on some soil chemical properties and root yield of Sweet potato. The time intervals were 2 weeks before planting, (WBP), at planting, 2, 4, and 6 weeks after planting (WAP). Sweet potato varieties used were TIS...

Aug, 2011 pp. 35-44 267 views 576 downloads
92
Research Article

Influence of Sesame Varieties and Fertilizer Levels on the Yield of Sesame in Potiskum, Yobe State - Nigeria

Usman, M.*, A. Ali, Olatunji O

Field experiments were carried out in 2018 and 2019 cropping seasons to deter- mine the influence of sesame varieties and fertilizer levels on the yield of sesame in the study area. Treatments consisted of three varieties of sesame (Jigida, NCRIBEN-01M and NCRIBEN-032) and four levels of NPK 15:15:15 fertilizer (0, 50,100 and 150 kg ha-1). Treatments were laid out in a randomized complete block de...

Apr, 2021 pp. 36-43 374 views 717 downloads
93
Research Article

Vegetative Growth and Yield Response of Amaranthus Hybridus to Mycorrhizal Fungi (glomus Mosseae) Inoculation, Organic and Micronutrient Fertilizer Application

Edosa, Ifeyinwa Valerie1*, Ogbemudia, Imasuen E. E, Yaqub A. E, Ogboghodo, I. A

This study was carried out at the Faculty of Agriculture Teaching and Research farm, University of Benin during the early planting season in April 2016 to evaluate the growth response of Amaranthus hybridus and some soil physical and chemical properties as influenced by organic and micronutrient fertilizers, mycorrhizal inoculum. In this experiment four treatments (poultry manure + cow dung + pig ...

Apr, 2020 pp. 36-41 275 views 672 downloads
94
Research Article

Effect of Phosphorus and Sulphur on Oil Content of Sesame Varieties (research Communication)

Jahun H. A.*, Samndi M. A., S. G. Mohammed

Information on phosphorus sulphur fertilizer requirements of some new sesame varieties in Semi-Arid ecological regions is deficient therefore the need to evaluate the effects of P and S has become necessary.Two sets of experiments were carried out to evaluate the effect of phosphorus and sulphur on the oil content of sesame (Sesame indicum L.). The experiment was conducted during 2009 raining seas...

Apr, 2016 pp. 36-40 273 views 450 downloads
95
Research Article

Comparative effects of organic manure and inorganic fertilizer as nitrogen sources on leaf nutrient content and nitrogen use efficiency of cotton

Omadewu, L.I.*, Kefas, P. K, Ukatu, P O, Abednego, C., Solomon Rejoice Ibrahim

A field experiment was conducted at the Research Farm of the College of Agriculture Jalingo, Taraba State in two planting seasons (2020 and 2021) to determine the influence of nitrogen sources and rates on nutrient concentration in leaf and nitrogen use efficiency of cotton. The experiment was a 5x4 factorial of four nitrogen sources (poultry manure, organo-mineral fertilizer, urea and NPK15:15:15...

Apr, 2025 pp. 37-45 296 views 596 downloads
96
Research Article

Micronutrient Status of Grain Size Fractions in Soils of Land Uses in Mbano, Southeastern, Nigeria

Uzoho B.U.*, Irokwe I. F.

Micronutrient status in grain size fractions provides information on the active soil fraction and the ability for stabilization against microbial decomposition. Total, available, exchangeable and water-soluble Fe, Zn, Cu and Mn in bulk and grain size soil fractions were evaluated in three land use types (Cassava, Cashew and Oil palm) in Ehime Mbano, Southeastern, Nigeria. Also, using correlation a...

Apr, 2022 pp. 37-44 275 views 578 downloads
97
Research Article

Morphological and Physical Properties of Soils on Basement Complex in Northern Guinea Savanna of Nigeria

MANIYUNDA L.M.*, Bashiru Ademola Raji, Odunze Azubuike Chidowe, MALGWI W.B.

Soils developed on four basement complexes, namely Older Granites (OG), Quartzites (QZ), Mica Schists (MS) and Migmatite Gneiss (MG) were studied on crest position in Northern Guinea Savanna of Kaduna State, Nigeria with a view to examine their morphological and physical properties and suggest management options. The results indicated that parent materials significantly influenced soil depth, stru...

Apr, 2014 pp. 37-51 286 views 608 downloads
98
Research Article

Heavy Metal Status in Soils and Amaranthus Cruentus from Farmland on the Bank of Orogodo River, Agbor, Delta State, Nigeria.

Orhue, Ehi Robert*, Edosa, Ifeyinwa Valerie1, Iyagbaye, Louis2

This study investigated the status of heavy metals in the soil and Amaranthus cruentus on the farmland at bank of Orogodo River at Agbor, Delta State, Nigeria. Soil and plant samples were collected at an area of 8000 m 2 . The soil samples were collected at a depth of 0-15 cm, 15-30 cm and 30-45 cm while the plant samples were also sampled along with the sampling of the soil in December 2013. Both...

Apr, 2015 pp. 38-44 311 views 536 downloads
99
Research Article

Field Evaluation of Biowish - Crop Organic Fertilizer in Lowland Rice Production

Bakare S.O*, Alhassan G., Ekaette J.E, Ukwungwu, M.N

A Randomized Complete Block Design experiment with three replicates was carried out at the lowland experimental site of the National Cereals Research Institute, Badeggi in the 2011 and 2012 wet seasons. National Cereals Research Institute, Badeggi is located at Lat. 09o 45’N; Long. 06o 7’E. Three rates of Biowish-Crop (5, 4 and 3kg/ha) were combined with inorganic fertilizer at either recommended,...

Aug, 2013 pp. 38-43 230 views 523 downloads
100
Research Article

Status of Available Micronutrients in Soil Profiles of Different Parent Materials in Imo State, Southeastern, Nigeria

Okoli N. H*, Bethel Ugochukwu Uzoho, Onweremadu E. U, Ahukaemere C. M., Osisi A. F, Aliba E.O.

The status of available Zn, Cu, Ni and Fe was studied in four representative soil profiles of different parent materials (Coastal Plain Sands, Alluvium, Falsebedded Sandstones and Imo Clay Shale) in Imo State, Southeastern Nigeria. Sample collection was guided by horizon differentiation. Available Zn, Cu, Ni and Fe were evaluated using double acid extraction method. Variation in distribution of av...

Apr, 2017 pp. 40-52 287 views 518 downloads