Kinetics of cadmium in different Indian and Hungarian soils: Incubation study at field capacity

Samples of Hungarian and Indian soils (heavy and light) from different agro-ecological zones were taken in 1998 and 2002, respectively, and the periodic extractability of DTPA-extractable (plant available form) of Cd was determined after incubation at field capacity with different loads of Cd (10, 20, 40 and 80 mg Cd kg −1 soil) and correlated with some important soil properties. DTPA-Cd was found to be most highly correlated with cation exchange capacity (CEC), followed by organic matter (O.M.) and pH of the soils. A lower amount of added Cd was recovered in the form of DTPA-Cd with an increase in the time interval.