Effect of Modern Agriculture on Accumulation Rate of Heavy Elements(Fe, Cu, Zn, Mn, Pb, Cd and Ni) in Farming Soils of Moghan

Today with the appearance of restless and modern agriculture and non- scientific use and abuse of agricultural fertilizers especially pesticides and chemical fertilizers have been popular in most agricultural regions of Iran especially in Moghan region. For this reason 127 samples were collected and induced from different farmland and nonfarmland of Moghan. The amount of Cu, Zn, Fe, Mn, Pb, Cd and Ni were measured by means of Atomic absorption. The results showed that there was a significant difference between farming soil and non farming soil naming Cu, Zn, Fe, Mn, Pb, Cd and Ni. The accumulation of Cu, Zn, Fe, Mn, Pb, Cd and Ni were 5, 3.5, 10, 14, 3, 20, 5 times as much in farm soils than non farm soils respectively.The possible reasons for this accumulations could be The abuse of fertilizers, pesticides and polluted water.