(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170


Pages: 167-170
F. I. Achuba

keywords: Crude oil, oil palm, pollution, soil enzymes


One problem in crude oil producing regions of the world is pollution of farmlands. As a result, researches are being conducted worldwide to avail a simplified way of reclaiming petroleum polluted soil. In this study the possible ameliorative effect of oil palm leaf, a major waste product of oil palm plantation was evaluated on soil enzyme activities. A laboratory experiment was setup thus: Group 1: 400 g of unpolluted soil, Group 2: 400 g of unpolluted soil + 50 g of oil palm leaf, Group 3: 400 g of unpolluted soil + 100 g of oil palm leaf, Group 4: 400 g of polluted soil, Group 5: 400 g of polluted soil + 50 g of oil palm leaf and Group 6: 400 g of polluted soil + 100 g of oil palm leaf. Soil samples were collected from each treatment once a week for three weeks to determine the activities of alkaline phosphatase, acid phosphatase, urease, dehydrogenase and catalase using standard procedures. The results show that addition of oil palm leaf increased the activities these enzymes relative to the untreated crude oil polluted soil. Thus, oil palm leaf is a candidate for improving soil productive potentials as well as possessing the ability to remediate petroleum impacted farmlands


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