Volume 27, Issue 1 (April)

1

Research Article

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. 22-27 326 views 876 downloads

2

Research Article

Heavy Metal Accumulation in Soil and Subsequent Uptake by Amaranthus (amaranthus Cruentus (l.) Irrigated with Dye Industrial Effluent

O. A. Oguntade^*, Adetunji M. T, Jamiu Oladipupo Azeez

This study assessed the impacts of untreated dye effluent collected from three dyeing sites on soil heavy metal accumulation, uptake by root and accumulation in amaranthus shoot. Dye effluents collected at discharge points on the sites were diluted with fresh water at 0 %, 25 %, 50 % and 100 % concentrations. Each dye effluent concentration was applied at the rate of 200 ml three times in a week t...

Apr, 2017 pp. 35-39 288 views 501 downloads

3

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. 40-52 281 views 516 downloads

4

Research Article

Influence of Velvet Bean Fallow and Compost Amendments on Amaranths (amaranthus Caudatus) Yield and Soil Properties in an Organic Cropping System

AdeOluwa O. O^*, A. Bello

One of the major problems bedeviling crop production in many parts of the tropics is low soil fertility status. Thus, this report evaluates the effects of soil fertility improvement by velvet bean fallow and compost, on the yields of amaranth, as well as the post-harvest soil fertility. Green amaranth (Amaranthus caudatus) was used as the test crop. Six fertilizer treatments namely, Ibadan brewery...

Apr, 2017 pp. 53-62 256 views 481 downloads

5

Research Article

Organic Manuring on Fruits and Vegetable Production and Soil Properties in Landmark University, Omu - Aran, South - West Nigeria

Agbede O.O^*, Fabiyi E.F., Adeleye, M.B.,, Nwafor S.I., Adekiya A.O.

Three experiments were established in the field within Landmark University Teaching and Research Farm during 2013 and 2014 cropping seasons (August – November each year). One experiment tested the response of tomatoes to Urea (at 40 kg/ha rate), NPK (40 kg/ha), Cowdung (5t/ha) and Poultry manure + NPK. The second trial tested the effect of varying levels of poultry manure + NPK. The second trial t...

Apr, 2017 pp. 92-100 272 views 517 downloads

6

Research Article

Influence of Slope and Depth on Soil Chemical Properties in an Oil Palm Plantation

O. O. Olubanjo^*, MAIDOH F.U.

A study was carried out in a 28-year old Oil palm (Elaeis guineesis) plantation established on a gently sloping terrain in NIFOR Benin, Nigeria to determine the geo-spatial distribution of soil chemical properties as influenced by slope position and depth and also the assess the relationship between soil chemical properties with slope and depth. A line transect was delineated along the slope of th...

Apr, 2017 pp. 173-184 263 views 510 downloads

7

Research Article

Slope Position and Depth Effects on Selected Soil Physical Properties Under Oil Palm (elaeis Guineensis) Plantation

O. O. Olubanjo^*, F. U. Maidoh, P.O. Oviasogie

A study was conducted to examine the influence of slope position and depth on soil physical properties in an oil palm (Elaeis guineensis) plantation established on a gently sloping terrain in NIFOR Benin, Nigeria. A line transect was delineated along the slope of the selected plantation. The line transect was 45 m long and 45 m wide. It was divided into three equal slope segments namely, Summit, M...

Apr, 2017 pp. 208-215 319 views 577 downloads

8

Research Article

Use of Ash for Soil Fertility Improvement Effect on Cowpea

OJENIYI STEPHEN OLUSOLA^*, Oyatoye A., Abdulraheem M. I.

Different rates of wood ash at 0 to 6t/ha were applied to cowpea crop in an experiment carried out at Akure, Southwest Nigeria to study effects of ash on cowpea performance soil and plant nutrients composition. The experimental soil is slightly acidic, low in available P and exchangeable Ca. Ash increased soil pH which increased with the rate of ash. Available P, exchangeable Ca, K and Mg were inc...

Apr, 2017 pp. 216-221 273 views 481 downloads

9

Research Article

Irrigation Suitability Ratings and Okra Productivity of Some Mid - Benue Trough Soils: a Comparative Analysis

Abagyeh S. O. I^*, Ibo P. I., Idoga S.

A detailed soil survey using grid method was conducted to characterize and rate irrigation suitability of soils and relate it with okra productivity under surface irrigation. Two soil profiles were dug at each site and morphologically described. Soils sampled from identified profile horizons were analyzed. Parametric evaluation method using the soil characteristics was employed. A 4×4×4 factorial ...

Apr, 2017 pp. 230-244 272 views 464 downloads

10

Research Article

Maize Growth and Yield Components as Influenced by Different Sources of Organic Fertilizers

Ayoola O.T.^*, Adebayo A.K

A trial was conducted on field between May – September, 2010 in two agroecologies of South West, Nigeria to determine the effect of different organic based fertilizer source on growth and yield components of different maize varieties. The experiment was laid out in Randomized Complete Block Design in split plots arrangement replicated four times. The maize varieties served as the main plot (Obatam...

Apr, 2017 pp. 245-254 256 views 511 downloads

11

Research Article

Maize Growth and Yield Components as Influenced by Different Sources of Organic Fertilizers

Ayoola O.T.^*, Adebayo A.K

A trial was conducted on field between May – September, 2010 in two agroecologies of South West, Nigeria to determine the effect of different organic based fertilizer source on growth and yield components of different maize varieties. The experiment was laid out in Randomized Complete Block Design in split plots arrangement replicated four times. The maize varieties served as the main plot (Obatam...

Apr, 2017 pp. 245-254 255 views 520 downloads

12

Research Article

Suitability Assessment of Soils of Nifor Sub - Station Ohosu Edo State for Oil Palm (elaeis Guineensis Jacq.) and Coconut (cocos Nucifera) Cultivation

Oko-Oboh E.^*, Senjobi B.A., AJIBOYE G. A., Oviasogie P.O, AWANLEMHEN B.E.

The need for appropriate and maximum utilization of available agricultural lands on sustainable basis cannot be over emphasized. Hence, this study was conducted to investigate the suitability of the soils of NIFOR sub-Station Ohosu in Ovia South West Local Government Area, Edo State, Nigeria for both oil palm and coconut cultivation. Data from five pedons covering 2,100 hectares were used followin...

Apr, 2017 pp. 255-266 329 views 486 downloads

13

Research Article

Soil Properties and Cocoa (theobroma Cacao L.) Nutrient Uptake as Affected by Organic and Inorganic Based Fertilizers in Southwestern Nigeria

Adejobi K.B^*, Agele S.O., Ewulo, B. S

Low soil fertility is a major problem for cocoa establishment on the field, however, cocoa (Theobroma cacao L) is characterized by high nutrient demand particularly N, P, K, Ca and Mg during its early growth. In this study, the effects of organic and inorganic fertilizers on soil properties and nutrient uptake of cocoa in Ibadan and Owena soils of Southwestern Nigeria were investigated in 2011. Th...

Apr, 2017 pp. 282-296 324 views 690 downloads

14

Research Article

Effects of Land Use on Soil Micronutrients Status in Ughoton Community Ovia North East, Edo State, Nigeria.

P.O. Oviasogie^*, Awanlemien B. E., Ikyaahemba P. T.

The study was conducted to assess the effects of different land use practices on soil micronutrients in 18 soil samples collected at 0-15 cm and 15-30 cm depth respectively from three land use types (Cassava field, Oil palm and Banana plantation) and analyzed for physico-chemical properties and selected micronutrients (Zn, Cu, Fe and Mn) using standard laboratory methods. The results showed that O...

Apr, 2017 pp. 297-306 240 views 476 downloads

15

Research Article

Forms of Primary Nutrient Elements in Soils Overlying Contrasting Parent Materials in South - Eastern Nigeria

Ahukaemere, C.M.^*, Bethel Ugochukwu Uzoho, Ndukwu, B., Onwudike S,U., Okoli N.H., Irokwe I. F.

Appropriate management of soil fertility should rely upon sound knowledge of the nutrients reserve and their availability. This is only possible if there is adequate information on the influence of parent material on the dynamics and availability of these nutrient elements. Research was carried out in 2014 at three locations underlain by three different parent materials namely Basalt (Ikom in Cros...

Apr, 2017 pp. 316-324 291 views 488 downloads

16

Research Article

Potential Impacts of Natural Gas Pipeline Construction and Operation on Land/Soil Quality in South Eastern Nigeria

Akinbola G. E.^*, Orimoloye J. R.

The quest to make available, cheaper, cleaner, more efficient and more reliable sources of energy and feedstock for industrial and domestic uses,in Aba Owerrinta axis of Abia State, Southeastern Nigeria in a developmental process cannot be over emphasized. This has necessitated the construction and installation of a 12” diameter natural gas pipeline with a l00 m wide right of way for a distance of...

Apr, 2017 pp. 335-344 298 views 502 downloads

17

Research Article

Variations in Soil Properties as Influenced by Land Use and Soil Depth in a Derived Savannah Ecology of Southwestern Nigeria.

Denton O.^*, Ogunkunle, A, Fademi I.

Soil physical and chemical properties are strongly influenced by soil management systems and changes in land use. The study was carried out in Iseyin LGA of Oyo state which is a derived savannah zone under four different land use types’ arable, grazing, fallow and tree crops. A total of twenty four soil samples were collected at two depths i.e. 0-15cm and 15-30cm, from the study area using the clu...

Apr, 2017 pp. 345-357 277 views 5 downloads