| 摘要 |
Herbicidally active thiolcarbamates are employed in combination with certain substituted carbamates having the formula <IMAGE> in which R4 and R5 are each methyl, R4 and R5 conjointly form C1-C4 alkylenedioxy, R4 is -CF3 and R5 is hydrogen, or R4 is -CH2Br and R5 is hydrogen. In a typical application, the carbamate is included in sufficient quantity to lessen the rate of soil degradation of the thiolcarbamate. As a result, the herbicidal effectiveness of the thiolcarbamate is enhanced and prolonged, rendering a single application of the herbicide effective over a longer period of time.
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