Articles

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379 articles
51
Research Article

Degradation Effect of Palm Oil Mill Effluent (pome) on Physical and Chemical Properties of the Soils of Uga, South Eastern Nigeria.

Obiageli Patience Umeugochukwu*, V O Chude, Ezeaku P

This study investigated the impact of long term application of palm oil waste on the physical and chemical properties of sandy Ultisols (Arenic Kandiustult) in Uga, Nigeria. Soil samples were collected from the surface (0-10 cm) and subsurface (15-25cm) of the palm oil-polluted site. Another surface (0-10) and subsurface (15-25) samples were collected 15 meters away in the palm oil unpolluted (con...

Apr, 2012 pp. 18-26 302 views 6 downloads
52
Research Article

Comparative Effect of NPK Fertilizer, Poultry Manure and Rice Mill Waste on Soil Chemical Properties, Nutrient Content and Performance of Ginger (zingiber Officinale Roscoe) in Umudike, Southeastern Nigeria

Okeke V. N.*, Nwangwu B.C

The study examined the comparative effect of NPK fertilizer, poultry manure and rice mill waste on soil chemical properties, nutrient content and performance of ginger in 2018 and 2019 at the National Root Crops Research Institute Farm, Umudike, Southeastern Nigeria, using ginger variety (UG 1) as the test crop. There were seven treatments consisting of sole and combinations of NPK15:15:15, poultr...

Apr, 2022 pp. 19-24 293 views 657 downloads
53
Research Article

P Sorption Characteristics in Hevea Supporting Soils of Coastal Plain Sand Origin in Southern Nigeria

Idehen, C.N.*, Bakare, A.O., Okore, I.K, Osazee, F

Phosphorus (P) is a macronutrient element that plays a number of important roles in plants and soils including Hevea brasiliensis (Natural Rubber). Adequate P nutrition in rubber will result in improved latex production, crop quality, root growth and early maturation. Thus, a study of the relevant indicator of P sorption across depth of rubber supporting soils is necessary. Therefore, this study i...

Apr, 2023 pp. 20-26 4 views 1 downloads
54
Research Article

Fertility Status of Biakpan Rubber (hevea Brasiliensis) Soils of Cross River State, Nigeria

Kekong, M. A.*

A study was carried out at Biakpan rubber estate in Cross River State, Nigeria to evaluate the fertility status of the soils. Three profile pits at random points within the estate were sunk representing the crest, the middle slope, and the valley bot- tom. Five samples were collected from each profile at 0 – 25cm, 25 – 50cm, 50 – 75cm, 75 – 110cm and 110 – 170cm depth. Fifteen representative soil ...

Apr, 2021 pp. 20-24 262 views 571 downloads
55
Research Article

Yield Decline Trends of Eroded Ultisols in Owerri, Southeastern Nigeria: Maize Response to Artificial Erosion

Nnenna Nnannaya Oti*

The artificial incremental removal of surface soil to varying depths to simulate erosion followed by subsequent evaluation of crop growth and performance under uniform management is a common agronomic technique to study erosion/soil productivity relationships. However, because its results tend to exaggerate yield decline rates it is being replaced by the more complex erosion phase approach. This p...

Apr, 2015 pp. 20-30 276 views 563 downloads
56
Research Article

Laboratory Incubation Studies of Biochar Amendment on Non - Co2 Greenhouse Gas Emissions from Soil Cultivated to Coconut Seedlings

M.O. Ekebafe*, P. Oviasogie, N.O. Asueni

Biochar is a carbon-rich product obtained when biomass such as wood, manure or leaves is heated in a closed vessel with little or no air. It is an appropriate tool for sequestrating carbon dioxide in soils for a long time in order to mitigate climate change. The objective was to determine the effects of biochar amendment on greenhouse gas emissions from soil cultivated to the coconut seedlings. Th...

Aug, 2013 pp. 20-26 257 views 520 downloads
57
Research Article

Pedological Characterization and Classification of Soils Underlain by Basement Complex at the Mambilla Plateau, Nigeria

Osujieke D.N.*, Idoga S., Abagyeh S. O. I, Ugese, F.D

The study aimed to characterize and classify selected soils underlain by a basement complex at the Mambilla Plateau in Taraba State Northeast, Nigeria. A total of 12 pedons were dug to represent sampling units. Soil samples from the pedogenetic horizons of the pedons were collected after profile description, processed and analyzed. The pedons were very deep (> 150 cm) except for pedon 3, which was...

Aug, 2022 pp. 21-32 270 views 548 downloads
58
Research Article

Comparative Yield of Bell Pepper (capsicum Annuum L.) on Different Soil Series in Ibadan, Southwestern Nigeria

Olufunmi O. O*, Adeoye G. O

Climatic change and its accompanying adverse effects on the cultivation of crops such as bell pepper - an important fruit vegetable requires adaptable technology strategy at low or no cost to poor resource farmers. Growing bell pepper on soils considered less suitable could be an adaptation strategy to mitigate the effect of climate change on bell pepper production. Field trials were conducted at ...

Apr, 2019 pp. 21-26 362 views 674 downloads
59
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. 22-27 327 views 877 downloads
60
Research Article

Evaluation of Npk Fertilizer Formulations on the Growth and Dry Matter Yield of Coffee Seedlings

Ibiremo, O.S.,*, Akanbi O. S.O., Oloyede A.A., Adebowale L.A

A greenhouse study was carried out at Cocoa Research Institute of Nigeria, Ibadan to evaluate the effect of NPK fertilizer formulations on the growth and dry matter yield of coffee seedlings. The treatments consisted of NUTRICO-1 (NPK-liquid fertilizer) applied at rate 5 and 10 ml/15L water) and NPK- solid fertilizer 15:15:15 applied at 1, 3 and 5g/coffee seedling and a control. Data on growth of ...

Apr, 2013 pp. 22-26 374 views 626 downloads