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379 articles
361
Research Article

Evaluation of Some Sandstone Derived Soils of Southern Nigeria for Rubber (hevea Brasiliensis )cultivation

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

Some soils derived from crustaceous sandstones at Iyanomo, Edo State, Southern Nigeria were mapped, characterised and evaluated for rubber cultivation, using local, USDA Soil Taxonomy and FAO systems. Conventional parametric and non-parametric land suitability evaluation systems as well as weighted parametric approach in Geographic Information System (GIS) methods were used to generate suitability...

Aug, 2013 pp. 252-263 248 views 469 downloads
362
Research Article

Characterization of Biochar Produced from Diverse Feedstocks Used as Amendment on Acidic Ultisols at Umudike, Abia State.

Onwuka, M.I.*, Nwangwu B.C

Biochar is used as a soil amendment to improve soil nutrients for crop production. The nutrient contents of biochar depend on the type of feedstock, pyrolysis types and temperature among others. In this study, it was hypothesized that biochar produced from different feedstock at the same temperature will have different effects on soil properties. To verify this, a pot experiement was set up at the...

May, 2016 pp. 254-264 346 views 470 downloads
363
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
364
Research Article

Heavy Metals Accumulation in Soil and Amaranthus Cruentus L Irrigated with Dye Effluent Polluted Stream Water in Abeokuta, Southwest Nigeria

O. A. Oguntade*, M. T. Adetunji, F. K. Salako, T. A. Arowolo, Jamiu Oladipupo Azeez

This study evaluated the quality of Amaranthus cruentus irrigated with dye effluent polluted stream and water from a deep hand-dug surface well (well-water). It also assessed the levels of heavy metals including Manganese, Iron, Copper, Zinc and Chromium in soil and amaranths irrigated with the waters in two dry seasons. The results showed that the pH (9.67) and NO3- (226.76 mg L-1) contents of th...

Aug, 2013 pp. 264-275 280 views 502 downloads
365
Research Article

Effect of Nitrogen and Micronutrients on Grain Yield of Maize Varieties in the Northern Guinea Savanna Alfisol.

B. T. Olowookere*, Uyovbisere E, OJENIYI STEPHEN OLUSOLA

Field experiments were conducted in 2008 and 2009 in the Guinea Savanna ecology of Nigeria to investigate the effects of nitrogen fertilizer and micronutrients on the grain yield of two quality maize and two normal maize varieties. The treatments were four rates of inorganic fertilizer N (0, 50, 100, 150 kg Nha-1) and two rates of cocktail micronutrient mixtures. These were tested in a Randomized ...

Apr, 2016 pp. 265-271 272 views 475 downloads
366
Research Article

Nutrients Concentration and Root Count of Cassava as Influenced by Residue and Npk Fertilizer

Babadele D.O.*, OJENIYI STEPHEN OLUSOLA

Experiment was conducted at two sites Ayegunle and Oka in South-West Nigeria to study effect of combined plant residues sawdust ash (SDA) and siam weed (Chromolaena odorata) (CR) and NPK (15:15:15) fertilizer on leaf N, P, K, Ca and Mg of Cassava. The parameters were evaluated at 3,6,9 and 12 months after planting (MAP) for nutrient concentrations and root count of cassava. The test soils are sand...

Aug, 2013 pp. 276-281 258 views 507 downloads
367
Research Article

The Effects of Different Types of Fertilizers on the Growth and Yield of Sesame (sesamum Indicum L) In Makurdi

OJENIYI STEPHEN OLUSOLA*, Ibrahim, N. B., Iorlamen, T.

A field experiment was conducted at the Teaching and Research Farm of the University of Agriculture, Makurdi, Benue State, Nigeria during the 2012 cropping season to determine the effects of different fertilizer types on growth and yield of Sesame. The experiment was laid out in a Randomized Complete Block Design and replicated three times. There were six treatments which included NPK – 15-15-15, ...

Aug, 2016 pp. 279-294 265 views 504 downloads
368
Research Article

Influence of Agro - Wastes on Soil Properties, Growth and Yield of Maize (zea Mays L.) in an Acid Ultisol of Owerri, Imo State

Onwudike S,U.*, Asawalam D. O., Ano, A. O.

We investigated the effect of selected agro-wastes on soil properties, growth and yield of maize (Zea mays) in a Typic Haplusult during 2011 and 2013 planting season at the Teaching and Research Farm of Federal University of Technology, Owerri Imo State Southeastern Nigeria (Latitudes 5° 21’ N and 5° 27’ N and Longitudes 7° 02’E and 7° 15’ E). The experiment was a 3 x 4 factorial fitted in a Rando...

Aug, 2016 pp. 279-294 242 views 469 downloads
369
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
370
Research Article

Cassava Yield as Affected by Sawdust Ash Siam Weed Residue and Npk Fertilizer

Babadele D.O.*, OJENIYI STEPHEN OLUSOLA

Experiment was conducted at Ayegunle and Oka South-West Nigeria to study effect of combined sawdust ash and siam weed residues and NPK fertilizer (NPKF) on soil nutrients and performance parameters of cassava. Plant parameters determined were number of leaves, plant height, stem girth, leaf area index, root weight, root diameter and root length. Plant residues NPKF and their combinations increased...

Aug, 2013 pp. 282-290 252 views 498 downloads