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| 保护性耕作条件下播后苗前除草剂防除玉米田杂草试验 | |
| 引用本文： | 沙洪林,纪明山,刘宇眉.保护性耕作条件下播后苗前除草剂防除玉米田杂草试验[J].吉林农业科学,2007,32(2):36-39. |
| 作者姓名： | 沙洪林 纪明山 刘宇眉 |
| 作者单位： | 1. 沈阳农业大学植物保护学院,沈阳,110161;吉林省农业科学院植物保护研究所,吉林,公主岭,136100 2. 沈阳农业大学植物保护学院,沈阳,110161 3. 吉林省四平市植物保护站,吉林,四平,136100 |
| 基金项目： | 国家粮食丰产科技工程项目 |
| 摘 要： | 田间试验结果表明,保护性耕作条件下,除草剂在玉米播后苗前施用,38%莠去津乳油5.25kg/hm2、90%乙草胺乳油2.1kg/hm2、72%异丙草胺乳油2.25kg/hm2、72%2,4D-丁酯1.05kg/hm2,药后45d的总株防效分别为81.40%、80.69%、79.23%和50.47%。而50%滴丁.乙乳油4.2kg/hm2、40%乙.莠悬乳剂5.7kg/hm2、50%滴丁.莠悬浮剂4.2kg/hm2和42%滴丁.异丙草.莠悬乳剂5.7kg/hm2对单、双子叶杂草除草效果均有增效作用,药后45d株防效分别为84.94%、86.33%、89.53%和85.47%。药后混土2～3cm,可提高防治效果,38%莠去津乳油5.25kg/hm2、90%乙草胺乳油2.1kg/hm2、72%异丙草胺乳油2.25kg/hm2、72%2,4D-丁酯1.05kg/hm2、50%滴丁.乙乳油4.2kg/hm2、40%乙.莠悬乳剂5.7kg/hm2、50%滴丁.莠悬浮剂4.2kg/hm2和42%滴丁.异丙草.莠悬乳剂5.7kg/hm2,药后45d的总株防效分别为87.42%、85.61%、84.02%、52.41%、92.74%、91.30%、91.92%和89.42%。 |
| 关 键 词： | 保护性耕作 除草剂 玉米 |
| 文章编号： | 1003-8701（2007）02-0036-04 |
| 收稿时间： | 2006-11-22 |
| 修稿时间： | 2007-02-06 |
Experiments on Control Effects of Pre-emergence Spraying of Herbicides on Maize of Conservation Tillage |
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| SHA Hong-lin ,JI Ming-shan.Experiments on Control Effects of Pre-emergence Spraying of Herbicides on Maize of Conservation Tillage[J].Jilin Agricultural Sciences,2007,32(2):36-39. | |
| Authors: | SHA Hong-lin JI Ming-shan |
| Institution: | SHA Hong-lin 1,2,JI Ming-shan1 |
| Abstract: | Experiments on control effects of pre-emergence herbicides on maize of conservation tillage were carried out in field.The results showed that the quantity control effects of weeds of 38% atrazine 150 ml/667m2,90% acetochlor 140 ml/667m2,72% propisochlor 150ml/667m2,2,4-D-butyl 70 ml/667m2 45 days after spraying were 81.40%,80.69%,79.23% and 50.47% respectively;But 50% 2,4-D-butyl acetochlor,40% acetochlor atrazine,50%2,4-D-butyl atrazine and 42%2,4-D-butyl propisochlor atrazine have improved the control effects and the quantity control effects of weed 45 days after spraying were 84.94%,86.33%,89.53% and 85.47% respectively.It could improve the control effect if soil of 2-3cm was mixed up.The quantity control effects of weeds of 38% atrazine 150 ml/667m2,90% acetochlor 140 ml/667m2,72% propisochlor 150 ml/667m2,72% 2,4-D-butyl 70 ml/667m2,50% 2,4-D-butyl acetochlor,40% acetochlor atrazine,50% 2,4-D-butyl atrazine and 42%2,4-D-butyl propisochlor atrazine were 87.42%,85.61%,84.02%,52.41%,92.74%,91.30%,91.92% and 89.42%. |
| Keywords: | Conservation tillage Atrazine 2 4-D-butyl Acetochlor Propisochlor Herbicide Maize |
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