Comparative evaluation of the physiochemical parameters of crude oil polluted soil remediated with mushroom (Pleurotus tuberregium)
- Country : Nigeria
- Subject : Plant biology and Biotechnology
Abstract
The impact of crude oil pollution on the physicochemical parameters of the polluted soil and the influence of remediating the soil with mushroom were investigated. The treatments were three different concentrations of crude oil pollution (150, 300 and 450 ml). The polluted soil was amended 14 days after pollution with sclerotia, while sawdust was added as a substrate for the sclerotia, with two sets of control: polluted soil without amendment and unpolluted soil. Results indicated that crude oil pollution significantly affected the physicochemical parameters at (P < 0.05). The percentage total organic carbon were significantly increased two weeks after crude oil pollution while the pH, percentage total nitrogen, phosphorus significantly decreased. The results also showed that the amendment treatments significantly decreased the toxic effect crude oil at different degrees by improving the nutrient content of the soil. The C: N ratio was significantly reduced in the different concentrations of the polluted soil compared to the control. Therefore, mushroom helps in restoration of soil fertility by increasing the nutrient content after remediation.
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