Distribution,movement and dissipation of triazophos in rice plant and the impact of related environmental factors through the simulated experiments

Through the simulated experiments,the mechanism of distribution,movement and dissipation of trizophos in the ecosystem of rice-water-soil was investigated and the impact of environmental temperature,photoperiod and rainfall on dissipation of triazophos were also analyzed.The trial of distribution,movement and dissipation of triazophos in the system of rice-water-soil indicated triazophos mostly distributed in water and soil during 0-3 d,and then it distributed in rice plant from the 7 d to the end of trial.The half-lives of triazophos were 4.45 d,1.56 d and 5.24 d in rice plant,water and soil respectively,which had significant differences(PPPPP<0.05).