concentrations of these heavy metals imposed by the crude oil pollution have negative effects on the vegetations. Plants grown on crude oil polluted soil shows stunted growth. This is in agreement with the findings of Udo and Fayemi (1975) [28] who also found that the performance of maize plants after germination was seriously affected by oil pollution. Growth of tested crops was generally poor in the polluted soil and this agrees with the studies by Toogood and Rowell (1977) [29] and Odu (1981) [30] who reported retardation of growth at high levels of oil treatment. The reduction in growth could be attributed to a hindrance of transpiration and photosynthesis [31,32]. Heavy metals are potentially toxic and phytotoxicity for plants results in chlorosis, weak plant growth, yield depression, and may even be accompanied by reduced nutrient uptake, disorders in plant metabolism and reduced ability to fixate molecular nitrogen in leguminous plants