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我市地处浙中,秧田期主要杂草有稗草、牛毛毡、节节菜、异型莎草、矮慈姑等。其中稗草与秧苗同步生长,密度高、为害大。应用丁草胺等防除秧田稗草使用要求高,且易造成药害或错过防治适期。据介绍二氯喹啉酸防除水田稗草高效、安全、使用时期幅度宽。为明确二氯喹啉酸防除秧田期稗草适用时期及剂量,摸索混用除草技术,1991年我们在牛三里镇中稻秧田上进行了本项试验研究工作。
The city is located in Zhejiang, seedling main weeds are barnyard grass, cattle blankets, section dish, Shaped sedge, short arrowheads and so on. The barnyardgrass and seedling growth simultaneously, high density, harmful. The application of butachlor and other barnyard grass seedling control requirements are high, and easily lead to injury or missed the appropriate control. It is reported that quinclorac control of barnyard grass in paddy field efficient, safe, wide range of use. In order to clarify the application period and dosage of quinclorac to control barnyardgrass in seedling stage and to explore the mixed herbicidal technology, we carried out this experiment in 1991 in Niusanli medium rice paddy field.