摘要
为验证75%氟磺唑草胺WG对多年生杂草田旋花的防除效果和持效期,采用大豆播种后苗前土壤喷雾,定期调查的方法进行田间药效试验。结果表明,75%氟磺唑草胺320～440 g a.i./hm2,兑水750 L/hm2喷雾,药后40 d对田旋花的株防效为68.4%～98.3%,第二年对田旋花株防效依然能达到45.3%～90.1%。
In order to test the control efficiency and effective period of sulfentrazone 75% WG on the perennial weed bind- weed（ Convolvulus arvensis L. ） ,field trim was conducted by soil spraying with the herbicide after soybean seeds sowing but before seedling emergence, and by regular investigation. The results showed that when sulfentrazone 75% WG was applied at the dose of 320 - 440 g a. i/hm^2, adding 750 L/hm^2 of water to spray, the individual plant control efficiency of bindweed was 68.4%-98.3% after spray herbicide for 40 days,and was still reach to 45.3% -90.1% in the second year.
出处
《杂草科学》
2012年第4期60-61,66,共3页
Weed Science
关键词
氟磺唑草胺
田旋花
sulfentrazone
Convolvulus arvensis L.
