Study phytoremediation of soils polluted with heavy metals and oil pollutants in agricultural lands affected by persian gulf war (khouzestan, fars, kohgiluyeh & boyr ahmad and boushehr provinces).

High concentration of oil contaminant in soils beside a devastated effect on ecosystems caused more uptakes of pollutants by plants and then entrance to human and other live organisms food chains. This phenomenon occured various diseases to humans and other organisms. Such pollutants can also cause problems for human health and the environment through ground water contamination as well. The existent methods for remediation of contaminated soil are often too costly and therefore cheaper methods for the decontamination of polluted soils can help refine and efficient use of such lands .One of the most modern and low cost techniques for remediation of contaminated soils is using plant (Phytoremediation). In addition to its lower cost, Phytoremediation is consistent with the nature and requires less equipment rather than the other methods. Due to the possibility of soil contamination caused by the war in the Persian Gulf in the border provinces of Iran and its survey to human health, plants and the environment, This research was carried out in three project. Third project In order to study possibility of using plants for refining oil contaminants infected date palm orchards we carried out an experimental statistical randomized completely block design with 2 soil (soil without pollution, soil completely contaminated), 4 plants (control, alfalfa, corn and sunflower) and 3 replications. Treatments were: 1- planting date palm in soil without pollution 2- planting date palm and corn in soil without pollution 3- date palm and corn in soil without pollution 4- planting date palm and sunflower in soil without pollution 5- planting date palm in contaminated soil 6- planting date palm and corn in contaminated soil 7- planting date palm and alfalfa in soil contaminated 8- planting date and sunflower in soil contaminated. Total weight of seedlings in different treatments and palm seedling harvested and total, shoot, root weight in different treatments was measured, concentration of TPH in the contaminated soil were analyzed. Data analysed with spss 16 software and mean comparison was done with Duncan test. The results showed that significant differences between treatments. Alfalfa larger amounts of oil more than corn and sunflower soil was removed. Keywords: Phytoremediation, pollution, heavy metals, oil contaminants, wheat, canola, maiz, palm.