@article{OGOANAH_NGWOKE_OHANMU_OKOYE_IKHAJIAGBE_2020, title={Enhancement of the soil quality of an oil-polluted ultisol using livestock wastes}, volume={12}, url={https://notulaebiologicae.ro/index.php/nsb/article/view/10617}, DOI={10.15835/nsb12210617}, abstractNote={<p style="text-align: justify;">The study investigated the enhancement of soil quality of an oil-polluted ultisol using livestock wastes. Top soil (0 - 10 cm) was obtained as a pooled sample and polluted with spent lubricating oil at 10% w/w. The soil was subsequently amended with sun-dried goat (GT), rabbit (RB), and poultry (PG) dung at 10% w/w on dry weight basis both in singles, double-mixed, and triple-mixed combinations. Twelve weeks after treatment application, results showed that there was a 93.9% decrease (p<0.05) in bacterial colony count in the oil-polluted soil compared to the control. <em>Penicillium notatum</em> and <em>Aspergillus niger</em> as well as <em>Bacillus </em>sp. and <em>Proteus </em>sp. were the prominent fungal and bacterial species identified respectively. The most abundant plant in the soil seed bank was <em>Panicum maximum</em> with 10.4% abundance and this showed possible involvement of the plant in remediation of oil-pollution. The total hydrocarbon content of the oil-polluted soil was 9984.0 mg/kg, compared to 3170.6 mg/kg when amended with RB+GT, implying 76.77% remediation efficiency. Among several trials employed in this study, the combination of rabbit and goat wastes proved to be more effective in reducing the total hydrocarbon content of oil-polluted soil and therefore, is recommended as a potential candidate for application in the bioremediation of such soil.</p>}, number={2}, journal={Notulae Scientia Biologicae}, author={OGOANAH, Sylvia O. and NGWOKE , Uzoamaka N. and OHANMU , Edokpolor O. and OKOYE, Pascal C. and IKHAJIAGBE, Beckley}, year={2020}, month={Jun.}, pages={387–398} }