3种芽前除草剂在直播油菜生产上的应用效果比较
Hunan Agricultural Sciences(2010)
Abstract
敌草胺(旱克)、乙草胺(禾耐斯)、精异丙甲草胺(金都尔)3种油菜芽前除草剂均有较好的除草效果,施药后30 d调查,对禾本科杂草防效为72.3%~92.2%,对阔叶杂草的防效为46.7%~80.3%。其中,以金都尔效果最好,旱克除草效果稍差,但旱克对油菜出苗及生长发育无不良影响,禾耐斯除草效果较好,但需掌握好用量及施药环境。3种药剂处理的油菜产量均比对照显著提高,增产幅度为10.6%~25.8%。
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Key words
direct-seeding,pre-emergence herbicide,rape
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