| 两种除草剂混配在燕麦田的应用效果研究 |
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| 引用本文： | 苟智强,刘欢,赵桂琴,柴继宽,许兴泽,曾亮.两种除草剂混配在燕麦田的应用效果研究[J].草原与草坪,2018(3):73-78. |
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| 作者姓名： | 苟智强 刘欢 赵桂琴 柴继宽 许兴泽 曾亮 |
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| 作者单位： | 甘肃农业大学 草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃 兰州,730070 |
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| 基金项目： | 国家燕麦荞麦产业体系(CARS-8-C)，甘肃省教育厅高等学校科研项目(2015A-075)，甘肃省科技厅省青年基金(1506RJYA028)，甘肃农业大学盛彤笙科技创新基金(GSAU-STS-1517) |
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| 摘 要： | 为了筛选安全高效的燕麦田除草剂,选用50%二氯喹啉酸可湿性粉剂和40%二甲·辛酰溴乳油两种除草剂,以不同浓度混配后施于燕麦田,研究其对燕麦田杂草的防除效果以及对燕麦安全性和产量的影响。结果表明:不同处理对杂草的防效差异显著(P0.05),混配处理的防效平均在75%,高于各单剂处理。药后15d40%二甲·辛酰溴乳油和50%二氯喹啉酸可湿性粉剂混配处理(1 400mL/hm2+225g/hm2)的株防效最高,为86.23%。药后30d的防效同样以40%二甲·辛酰溴乳油和50%二氯喹啉酸可湿性粉剂混配处理(1 400mL/hm2+225g/hm2)的最高,其鲜重防效可达到98.81%。40%二甲·辛酰溴乳油和50%二氯喹啉酸可湿性粉剂混配处理(1 400mL/hm2+225g/hm2)还能显著提高燕麦干草产量,与对照相比可增产16.4%,达到10 404kg/hm2。籽粒产量以40%二甲·辛酰溴乳油和50%二氯喹啉酸可湿性粉剂(700mL/hm2+225g/hm2)处理最高,为2 564.27kg/hm2,相比对照增产37.4%。
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| 关 键 词： | 燕麦 除草剂 杂草防效 产量 oat herbicide weed control yield |
Weed control effect of two herbicides mixture in oat field |
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| GOU Zhi-qiang,LIU Huan,ZHAO Gui-qin,CHAI Ji-kuan,XU Xing-ze,ZENG Liang.Weed control effect of two herbicides mixture in oat field[J].Grassland and Turf,2018(3):73-78. |
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| Authors: | GOU Zhi-qiang LIU Huan ZHAO Gui-qin CHAI Ji-kuan XU Xing-ze ZENG Liang |
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| Abstract: | In order to screen out high efficient and safety herbicide for controlling the weeds in oat field,the weed control effect of different concentrations of 50% quinclorac and 40% bromoxynil octanoate plus MCPA-so- dium was studied.The results showed that there were significant differences among treatment groups (P<0.05).The average control effect of mixed herbicides was about 75% higher than single agent.40% bromoxynil octanoate plus MCPA-sodium 1 400 mL/ha+50% quinclorac 225 g/ha had the highest weed control rate (86. 53%)after treatment for 15 days,and increased oat hay yield (10 404 kg/ha)by 16.4% compared with the con-trol.Under same treatment,the best control rate was obtained as 98.81% after treatment for 30 days.The high-est grain yield (2 564.27 kg/ha)was obtained under treatment of 40% bromoxynil octanoate plus MCPA-sodi-um 700 mL/ha+50% quinclorac 225 g/ha,and it increased the grain yield by 37.4% compared with the control. |
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