ISSN 2375-1266
African Journal of Environmental and Waste Management ISSN 2375-1266 Vol. 12 (1), pp. 001-006, January, 2025. Available online at www.internationalscholarsjournals.org © International Scholars Journals
Full Length Research Paper
Remediation of Diesel Oil Polluted Soil with Poultry Manure: Impact on Germination and Growth of Forest Tree Species
1Ekpo F. E. and 2Nya E. J.
1Department of Biological Sciences, Akwa Ibom State University, P.M.B. 1167, Uyo, Nigeria.
2Departtment of Genetics and Biotechnology, Akwa Ibom State University, P.M.B. 1167, Uyo, Nigeria
Accepted 14 August, 2024
The effect of organic manure amendment on diesel oil polluted soil on germination percentage, plant height (cm), root length (cm), leaf length (cm), leaf width (cm), leaf area (cm2), moisture content and leaf numbers of some forest tree species (Delonix regia, Bauhinia sp and Cassia siamea) were investigated. Soil samples were polluted with diesel oil (1000ml) and amended separately with different quantity of poultry manure (0g, 100g, 200g, 300g, and 400g). Germination percentage was analyzed after three weeks of planting and growth parameters were recorded at the end of 6 months. Results revealed that diesel oil pollution significantly affected the soil physical and chemical properties and also impaired germination and growth performance of forest tree species. Poultry manure amendments were able to remedy the effect of the diesel oil pollution and enhance the germination and growth performance of the tree species. The remediation effect depend on the quantity of poultry manure applied and the highest growth parameters were recorded in 400g of poultry waste amended with diesel oil polluted soil. This study has shown that soil contaminated by diesel oil may have adverse effect on germination and growth performance of forest tree species, but this can be remedied by addition of organic nutrients especially poultry waste which act as a bioremediation and also organic manure that enhance soil fertility. It was recommended that poultry manure be employed in the amendment of diesel oil polluted soils.
Keywords: Diesel oil, Forest tree species, Poultry manure amendments, Bioremediation.