Preliminary Studies on Chlorimuron Degradation in Soil by Effective Microogranisms

摘要

A wheat (Triticum aestivum L.) bioassay method was used for preliminary determination of chlorimuron degradation in soil by EM (effective microorganisms). Under the conditions of this study, chlorimuron half-life was greater than 30-50 days in soil containing different initial concentrations of chlorimuron. After adding EM, chlorimuron degradation half-life ranged from 10-15 days, which was about 15-30 days shorter than without EM. Chlorimuron degradation was not significantly affected by EM populations applied at 50-200 mL-kg~(-1). Both monopotassium phosphate and urea enhanced the ability of EM to degrade chlorimuron, but brown sugar had no significant effect.