School of Biological Sciences

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Open Access
Effect of nutrient amendments of diesel oil polluted soil on plant growt parameters
(Maxwell Scientific Organization, 2011-07) Akujobi, C. O; Onyeagba, R. A; Nwaugo, V. O; Odu, N. N
The study investigated the effect of nutrient amendments of diesel oil polluted soil on plant height,leaf area and leaf numbers of eggplant (Solanum melongena). Soil samples were polluted and amended separately with different weights of poultry waste, pig waste, cow dung and inorganic fertilizer. Soil sampleswere also polluted with diesel oil without amendment to achieve 2, 4, 6, 8 and 10% pollution. Samples were analyzed at two weeks interval for sixteen weeks. The plant growth parameters were affected adversely by the diesel oil pollution and the higher the level of pollution, the more the effect. The nutrient amendments were ableto remedy the effect of the diesel oil pollution. The remediation effect was nutrient weight dependent and the best remediation effect was observed in poultry waste amended samples. This study has shown that diesel oil contaminated soil may have adverse effect on plants, but this can be remedied by addition of organic nutrient supplements especially poultry waste.