C-chlorsulfuron bound residues from soil. It was revealed that 34.40%-40.55% of total bound residues became extractable after incubation for 5 days
and the amounts of these residues changed slightly thereafter. It was also showed that those residues which existed in fulvic acid(FA) fraction of soil organic matter would be preferentially released by microorganisms. Compared with the control
two bacteria
Bacillus me gaterium and Arthrobacter sp.
did not demonstrate a strong ability to release bound residues.