Abstract:

Chlorothalonil is one of the most widely used foliar fungicides in the world. When using chlorothalonil to prevent or reduce fungal pathogens on crop plants, over-application, or application followed by irrigation or rainfall may cause the accumulation of chlorothalonil in soil. A better understanding of the fate and behavior of chlorothalonil in soil as well as its effects on soil ecological environment will improve our ability to use fungicides properly. This paper summarized advanced research achievements in degradation and transformation processes of chlorothalonil in soil and its effects on microbial activity and nitrogen cycling. The paper, on the basis of literature review, suggests that further studies are needed on the fields such as the exact mechanisms to influence microbial, the effects on microbial community structure and characterization, and the comprehensive evaluation of chlorothalonil application on soil fertility and ecological environment.