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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (9): 195-199.

所属专题： 水稻

• 植物保护 农药 • 上一篇    下一篇

不同除草剂配方组合对直播稻田抗药性杂草控制作用评价

马国兰 柏连阳 刘都才 刘雪源 陆永良 余柳青   

  • 收稿日期:2011-09-05 修回日期:2011-10-25 出版日期:2012-03-25 发布日期:2012-03-25

Control Effects of Different Herbicides Combinations on the Resistance Weeds in Direct Seeding Rice Fields

  • Received:2011-09-05 Revised:2011-10-25 Online:2012-03-25 Published:2012-03-25

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870

摘要：

为了明确不同除草剂配方组合防除直播稻田抗药性杂草的情况，于2009—2010年在洞庭湖稻区进行了田间试验。结果表明：处理后45天，二次使用二氯喹啉酸对稗草的株防效和鲜重防效仅分别为53.1%和65.5%，表明该稻区稗草对二氯喹啉酸已产生抗药性。两年的试验结果显示，除草剂配方组合1、2、3对抗药性稗草及其群落具有优良的防效，均在90%以上。通过两年的田间试验研究发现洞庭湖稻区稻田稗草对二氯喹啉酸已产生抗药性，试验中采用的3个除草剂配方组合在不同年份轮换使用，可避免或延缓新的抗药性杂草发生，具有良好的推广应用前景。

关键词: 吉林人参产业, 吉林人参产业, 跨越式发展, 战略转型

Abstract:

The objective of this study was to confirmed control efficacy that the different herbicides combinations were used to control the resistance weed in direct seeding rice fields in the region of Dongting Lake in 2009-2010. The results showed that Echinohloa crusgalli (L.). Beauv. (barnyardgrass) were resistant to quinclorac in the area, The control of double use quinclorac only gave the 53.1% of barnyardgrass plant density control and 65.5% of barnyardgrass plant fresh weight control in the experiment of 2010. The three combination herbicides of 1, 2, 3 in the test gave excellent control effect to resistance barnyardgrass and its population. The control effect was more than 90% to the weed in two years experiments. The three combination herbicides were used with ring application form in different years and to avoid or delay appearing of new resistance weeds. So that, the three combination herbicides should be extension promoting in direct seeding rice area of Dongting Lake.