【正文】
first prepared from wood chips and municipal sludge, and then mixed with limestone and zeolite to form cadmium contaminated soil soil conditioner was applied in cadmium contaminated paddy fields for two crops. The effect on decrease of available Cd and absorption of rice had been probed in the continuous application of the biocharbased conditioner by detecting the content of available Cd in soil and total Cd in rice. The results showed that available Cd in soil decreased by using biochar