The effects of chlorimuron-ethyl and its degradation products on the growth and ALS enzyme activity in subsequent maize
In this study,the main degradation products of chlorimuron-ethyl in soil were detected using high-performance liquid chromatography-high resolution time-of-flight mass spectrometry.The effects of chlorimuron-methyl and its degradation products in soil on the growth and ALS activity of maize were also analyzed.The results showed that the inhibitory effect of chlorimuron-ethyl degradation products on maize in soil was significantly lower than that of chlorimuron-ethyl itself.At low concentrations,chlorimuron-ethyl and its degradation products had no obvious inhibitory effect on maize crops,and some degradation products even promoted maize growth.At high concentrations,the inhibitory effect of chlorimuron-ethyl and its degradation products on maize was significant.
chlorimuron-ethylherbicidedegradation productshigh-performance liquid chromatography-high resolution time-of-flight mass spectrometry
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