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Papers by Sunday Aboh

Research paper thumbnail of Remediation of Crude Oil Contaminated Soil with Inorganic and Organic Fertilizer Using Sweet Potato as a Test Crop

Journal of environment and earth science, 2013

Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli Unive... more Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli University, Ekpoma to remediate crude oil contaminated soil with organic and inorganic fertilizers. Thirty six pots were filled with 5 kg surface soils (0-15cm).The soils were contaminated with 300 ml crude oil and amended with six rates of poultry manure and NPK fertilizer mixture. Potato vine with 2 nodes was planted in each pot. The pots were laid out using completely randomized design replicated thrice. Results showed that application of 6 t pm/ha + 400 kg NPK/ha and 4 t pm/ha + 200 kg NPK/ha reduced soil THC from 300 mg/kg to 39.08 and 70.00 mg/kg i.e. net remediation of 86.97 and 76.42 % respectively. Inorganic and organic fertilizer mixtures are effective in the restoration of crude oil contaminated soils. Keywords: contamination, crude oil, NPK fertilizer, poultry manure, remediation, sweet potato.

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Research paper thumbnail of Management of Petroleum Impacted Soil with Phytoremediation and Soil Amendments in Ekpan Delta State, Nigeria

Journal of Environmental Protection, 2012

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Research paper thumbnail of Remediation of Crude Oil Polluted Soils: Effect of Organic and Inorganic Nutrient Source on the Growth of Sweet Potato (ipomea Batata)

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Research paper thumbnail of Effects of Phytoremediation on Soil Total Hydrocarbon Content

Journal of Biology, Agriculture and Healthcare, 2013

Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli Unive... more Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli University, Ekpoma to determine soil total hydrocarbon content (THC) after contamination and remediation with sweet potato ( Ipomea batatas ) (phytoremediation). Thirty six plastic pots were filled with 5 kg surface soils (0-15 cm). The potted soils were contaminated with six rates of crude oil: 0, 200, 400, 600, 800 and 1000 ml/pot. Potato vine with 2 nodes was planted in each pot. The pots were laid out using completely randomized design replicated thrice. Results showed that phytoremediation activities reduced soil total hydrocarbon content (THC) from 100 and 200 mg/kg to 22.49 and 49.10 mg/kg i.e. net phytoremediation of 77.51 and 75.45 % respectively. Sweet potato plant is effective in the restoration of crude oil contaminated soils. Keywords: contamination, crude oil, phytoremediation, remediation, sweet potato.

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Research paper thumbnail of Improving educational efficiency in developing countries: What do we know?

… Comparative and International Education, Jan 1, 1988

... These include the development of literacy and numeracy skills, positive attitudes toward work... more ... These include the development of literacy and numeracy skills, positive attitudes toward work, civic ... It might reflect historical but outdated policies; overt and knowing waste; or simple mismanage ... a second language to lower-primary students (Standards 1-3). An evaluation of this ...

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Research paper thumbnail of The returns to education: Macroeconomics

Journal of Economic Surveys, Jan 1, 2003

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Research paper thumbnail of Dynamic rates of return to education in the US

Economics of Education Review, Jan 1, 2001

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Research paper thumbnail of Education and public policy in Australia

... the economic ones: human capital, resources and outputs, productivity and efficiency, educati... more ... the economic ones: human capital, resources and outputs, productivity and efficiency, education and work ... Education in Australia 9 The Deveson Report on TAPE and the training ... in course design, research programs, credentialling, student selection, and internal manage-ment. ...

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Research paper thumbnail of Decision-Making in Education: Some Issues

Economic and Political Weekly, Jan 1, 1970

... For example, the rate of return criterion (a version of the benefit-cost approach) can be mea... more ... For example, the rate of return criterion (a version of the benefit-cost approach) can be meaningfully used in decisions with regard to outlays of type (1) wherein the calculation of benefits and ... Construction of inter-temporal indices of internal efficiency of education (de-fined as ...

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Research paper thumbnail of The profitability of investment in education: concepts and methods

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Research paper thumbnail of Remediation of Crude Oil Contaminated Soil with Inorganic and Organic Fertilizer Using Sweet Potato as a Test Crop

Journal of environment and earth science, 2013

Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli Unive... more Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli University, Ekpoma to remediate crude oil contaminated soil with organic and inorganic fertilizers. Thirty six pots were filled with 5 kg surface soils (0-15cm).The soils were contaminated with 300 ml crude oil and amended with six rates of poultry manure and NPK fertilizer mixture. Potato vine with 2 nodes was planted in each pot. The pots were laid out using completely randomized design replicated thrice. Results showed that application of 6 t pm/ha + 400 kg NPK/ha and 4 t pm/ha + 200 kg NPK/ha reduced soil THC from 300 mg/kg to 39.08 and 70.00 mg/kg i.e. net remediation of 86.97 and 76.42 % respectively. Inorganic and organic fertilizer mixtures are effective in the restoration of crude oil contaminated soils. Keywords: contamination, crude oil, NPK fertilizer, poultry manure, remediation, sweet potato.

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Research paper thumbnail of Management of Petroleum Impacted Soil with Phytoremediation and Soil Amendments in Ekpan Delta State, Nigeria

Journal of Environmental Protection, 2012

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Remediation of Crude Oil Polluted Soils: Effect of Organic and Inorganic Nutrient Source on the Growth of Sweet Potato (ipomea Batata)

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Effects of Phytoremediation on Soil Total Hydrocarbon Content

Journal of Biology, Agriculture and Healthcare, 2013

Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli Unive... more Experiment was conducted in Faculty of Agriculture Teaching and Research Farm, Ambrose Alli University, Ekpoma to determine soil total hydrocarbon content (THC) after contamination and remediation with sweet potato ( Ipomea batatas ) (phytoremediation). Thirty six plastic pots were filled with 5 kg surface soils (0-15 cm). The potted soils were contaminated with six rates of crude oil: 0, 200, 400, 600, 800 and 1000 ml/pot. Potato vine with 2 nodes was planted in each pot. The pots were laid out using completely randomized design replicated thrice. Results showed that phytoremediation activities reduced soil total hydrocarbon content (THC) from 100 and 200 mg/kg to 22.49 and 49.10 mg/kg i.e. net phytoremediation of 77.51 and 75.45 % respectively. Sweet potato plant is effective in the restoration of crude oil contaminated soils. Keywords: contamination, crude oil, phytoremediation, remediation, sweet potato.

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Research paper thumbnail of Improving educational efficiency in developing countries: What do we know?

… Comparative and International Education, Jan 1, 1988

... These include the development of literacy and numeracy skills, positive attitudes toward work... more ... These include the development of literacy and numeracy skills, positive attitudes toward work, civic ... It might reflect historical but outdated policies; overt and knowing waste; or simple mismanage ... a second language to lower-primary students (Standards 1-3). An evaluation of this ...

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Research paper thumbnail of The returns to education: Macroeconomics

Journal of Economic Surveys, Jan 1, 2003

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Research paper thumbnail of Dynamic rates of return to education in the US

Economics of Education Review, Jan 1, 2001

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Research paper thumbnail of Education and public policy in Australia

... the economic ones: human capital, resources and outputs, productivity and efficiency, educati... more ... the economic ones: human capital, resources and outputs, productivity and efficiency, education and work ... Education in Australia 9 The Deveson Report on TAPE and the training ... in course design, research programs, credentialling, student selection, and internal manage-ment. ...

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Research paper thumbnail of Decision-Making in Education: Some Issues

Economic and Political Weekly, Jan 1, 1970

... For example, the rate of return criterion (a version of the benefit-cost approach) can be mea... more ... For example, the rate of return criterion (a version of the benefit-cost approach) can be meaningfully used in decisions with regard to outlays of type (1) wherein the calculation of benefits and ... Construction of inter-temporal indices of internal efficiency of education (de-fined as ...

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Research paper thumbnail of The profitability of investment in education: concepts and methods

Bookmarks Related papers MentionsView impact