摘要
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%。
Three kinds of pre-emergence herbicides,napropamide（Hanke）,acetochlor（Harness） and s-metolachlor（Dual-gold）,all have great weeds-control effect.Investigation was conducted at 30 days after drug application.The results showed that these three pre-emergence herbicides all had 72.3%~92.2% of control effect on grassy weeds,and 46.7%~80.3% of control effect on broadleaf weeds;in which,the Dual-gold had the best effect;the Hanke had the worse weeds-control effect,but no-harmful effect on seedling-emergence and growth of rape;the Harness had good weeds-control effect,but need to be paid attention to dosage and application environment.The yield of rape treated with these three pre-emergence herbicides all increased by 10.6~25.8% than that of control.
出处
《湖南农业科学》
2010年第11期76-78,共3页
Hunan Agricultural Sciences
基金
科技支撑计划资助项目(2010BAD01B11)
关键词
芽前除草剂
油菜
直播
pre-emergence herbicide
rape
direct-seeding
