Browsing by Author "Aladesanmi, O. T."

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    Risk mitigation strategies and policy implications for carbon dioxide (CO 2) emission in organically-amended soils in Nigeria
    (Academic Journals, 2010) Gbemisola, O. O.; Akin, O.; Aladesanmi, O. T.; Maruf, S.; Famurewa, Akindele J.; Siyanbola, W. O.
    Global food security has been a challenge, especially in Africa. This has attracted the adoption of strategies to improve soil productivity and crop yield. One of such strategies is the use of solid wastes as soil organic matter amendments. An investigation of the effects of soil amendment using poultry manure, sawdust and their mixtures on carbon dioxide (CO 2) emission, maize (Zea mays L.) growth and dry matter yield were assessed under laboratory and greenhouse conditions. Top soil obtained from unfertilized plots at the Obafemi Awolowo University Teaching and Research farm, Ile-Ife, Nigeria was used for the experiments. The organic amendments were added at the rate of 10 g/kg, treatments were in triplicates and treatment means were separated using Duncan’s Multiple Range Test at 95% level of significance. Results obtained revealed that CO 2 emission decreased while maize heights and dry matter yields significantly (P> 0.05) increased with increasing ratios of poultry manure in the poultry manure-sawdust mixtures. The CO 2 emission from poultry manure amended soil was about 61% that from sawdust amended soil while the mean height and dry matter yield in sawdust-amended soils were 84% and 52% respectively those obtained in poultry manure amended soil. This paper concludes that it is essential to design and implement policies that will guide and encourage the use of organic amendments at ratios that can enhance crop yield and mitigate CO 2 emission to the environment.
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    Strategic issues in jatropha biofuel enterprise development in Nigeria
    (IEEE, 2010-07-18) Ogundari, I. O.; Oladipo, O. G.; Famurewa, Akindele J.; Ali, G. A.; Aladesanmi, O. T.; Ogunkanmbi, D. A.; Siyanbola, W. O.
    In Nigeria today, fossil fuels constitute the major source of energy for the economy with consumption costs in excess of N 654 billion for petrol, N 303.2 billion for diesel and N 194 billion for Kerosene. The global debate on Climate Change/CO 2 emissions and domestic concerns on economic, environmental and energy security implications have necessitated alterative energy options and created opportunities for sustainable biofuel enterprise in Nigeria. Jatropha curcas (known as Lapalapa in Yoruba-speaking parts of Nigeria) is an uncultivated non-food wild-species plant with great potential for bioenergy development in the country. The seeds are resistant to a high degree of aridity and contain 27-40% oil that can be processed to produce a high-quality biodiesel fuel, usable in a standard diesel engine. With estimated diesel demands in Nigeria being 3600-4200 thousand metric tonnes by 2020, there is an expansive opportunity for jatropha biofuel enterprise in the country. This study examines the strategic issues (technological, economic, environmental, and socio-cultural) governing its development and proposes policy recommendations for its successful exploitation.