Abstract

메타조설퓨론(metazosulfuron)은 기계이앙벼 일년생 및 다년생잡초 방제약제로서 이앙 후 15일에 ha당 30kg 사용토록 농약품목등록 예정이다. 예비시험 결과, 방제가능 일년생잡초로는 피, 가막사리, 여뀌바늘, 물달개비 등 7초종, 다년생잡초로는 너도방동사니, 벗풀, 올방개, 올챙이고랭이 등 4초종이다. 설포닐우레아계 제초제 저항성잡초인 물달개비, 알방동사니 및 올 챙이고랭이도 동시에 방제할 수 있다. 또한 처리적기 폭이 넓어 제초제 살포시기를 살포자 임의로 조절할 수 있으며, 벼 품종에 대한 약해도 없었다. 그리고 환경에 미치는 영향은 적었다. A new paddy field herbicide, metazosulfuron granule is an herbicide for controlling annual and perennial weeds occurring in machinery transplanting paddy field. It is recommended to apply <TEX>$30kg\;ha^{-1}$</TEX> 15 days after transplanting. As a result of preliminary tests, it could control seven annual species such as Echinochloa crus-galli, Bidens tripartita, Ludwigia prostrata, Monochoria vaginalis var. plantaginea, etc. and four perennial species including Cyperus serotinus, Sagittaria trifolia, Eleocharis kuroguwai, and Scirpus juncoides. Monochoria vaginalis var. plantaginea, S. trifolia and S. juncoides resistant to sulfonylurea- herbicides were also controlled. Because application timing of the herbicide is wide, it is very efficient to control the spraying timing by users. Phytotoxicity of rice cultivars was not observed, and the impact on the environment is very limited.

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