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氟唑磺隆防除小麦田杂草效果及对后茬作物安全性

作  者:
张勇;宋敏;周超;马冲;路兴涛;孔繁华
单  位:
泰安市农业科学研究院植物保护研究所
关键词:
氟唑磺隆;小麦;防效;后茬作物;安全性
摘  要:
通过田间药效试验明确氟唑磺隆对小麦田杂草的防除效果,并研究了土壤药剂残留对后茬作物玉米、大豆、花生的安全性.结果表明,70%氟唑磺隆可分散粒剂21.0~63.0 g/hm~2对小麦田杂草防除效果优异,对雀麦防效良好,其鲜重防效为97.52%~100.00%;其对播娘蒿和猪殃殃防效较好,鲜重防效分别为53.17%~72.56%和50.29%~65.16%;其对荠菜的防效较差,其鲜重防效为30.78%~60.57%,且对小麦安全.冬前茎叶处理后种植玉米、大豆、花生等后茬作物,70%氟唑磺隆可分散粒剂有效成分用药量为31.5~94.5 g/hm~2时,土壤药剂残留对后茬作物出苗及苗期生长无影响,对后茬作物安全.
作  者:
Zhang Yong;Song Min;Zhou Chao;Ma Chong;Lu Xing-tao;Kong Fan-hua;Institute of Plant Protection, Tai'an Academy of Agricultural Sciences;
单  位:
Zhang Yong%Song Min%Zhou Chao%Ma Chong%Lu Xing-tao%Kong Fan-hua%Institute of Plant Protection, Tai'an Academy of Agricultural Sciences
关键词:
flucarbazone-Na;;wheat field;;control efficacy;;after-reap crop;;safety
摘  要:
Field experiment was conducted to study weeds control efficacy of flucarbazone-Na 70% WDG on wheat field and its residue effect on the growth and yield of after-reap crops(corn, soybean and peanut). Results showed that flucarbazone-Na had better control efficacy on Bromus japonicus than Descurainia sophia, Capsella bursa-pastoris and Galium aparine, and no influence on wheat. The application rate of 31.5-94.5 g/hm~2 in wheat field had no influence on the growth of seedling and yield of three kinds of after-reap crops.

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