The difference of Cd uptake by rice varieties and its relationship with Fe, Mn oxides deposited on root surface were studied by the methods of soil culture. \; The results showed that different rice varieties had significant difference on Cd concentrations in their root coating, root and shoot, and the transportation of Cd in plants was different between rice varieties. The amounts of Fe, Mn oxides deposited on root surface of rice varieties was also significantly different. The Cd concentration in ro...