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不同除草剂对豌豆田杂草的防除效果评价

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杂草严重影响豌豆产量和品质,制约豌豆产业发展.为了筛选安全、高效的除草剂,选用 3 种芽前土壤封闭除草剂和 6 种苗后茎叶处理除草剂,在大田试验条件下进行作物安全性及杂草防除效果评价.结果显示,480 g/mL氟乐灵乳油和 460 g/mL 2-甲-灭草松可溶液剂防效较好,施药后 30d株防效分别为 76.88%、64.52%,施药后60d株防效分别为 75.86%、66.98%,鲜重防效分别 79.59%、71.43%.24%乙氧氟草醚乳油对豌豆产生轻微药害;250 g/mL氟磺胺草醚水剂药害较重,严重抑制豌豆生长,应慎用.建议豌豆田杂草防除优先选用 480 g/mL氟乐灵乳油和 460 g/mL 2-甲-灭草松可溶液剂.
Evaluation of the Control Efficiency of Different Herbicides against Weeds in Pea Fields
Weeds are the major limiting factors for the low productivity and quality in peas,restricting industrial development of pea.In order to screen safe and efficient herbicides,three kinds of pre-budding soil sealing herbicides and six kinds of post-seedling stem and leaf treatment herbicides were selected to evaluate the crop safety and weed control effect under field test conditions.The results showed that 480 g/mL fluralin emulsifiable concentrate and 460 g/mL 2-methyl-metamoxacol soluble concentrate had better control effects,and the control effects were 76.88% and 64.52% of strains 30 days after application.After 60 days of application,the control efficiency of the isolates were 75.86% and 66.98%,and the fresh weight control effects were 79.59% and 71.43%,respectively.Furthermore,24% Oxyfluorofe emulsifiable concentrate caused slight pesticide injury to peas,250 g/mL Fomesafen aqueous solutions had severe phytotoxicity,and seriously inhibited the growth of peas.It is suggested that 480 g/mL fluralin emulsion and 460 g/mL 2-methyl-methanoxacol soluble concentrate should be preferred for weed control in pea fields.

HerbicidePeaWeedControl efficiency

王昶、张丽娟、闵庚梅、陆建英

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甘肃省农业科学院作物研究所,甘肃 兰州 730070

甘肃省农业科学院生物技术研究所,甘肃 兰州 730070

除草剂 豌豆 杂草 防效

甘肃省农业科学院院级科研计划项目国家食用豆产业技术体系甘肃省农科院农业科技创新专项

2024GAAS25CARS-08-G142023GAAS37

2024

甘肃农业科技
甘肃省农业科学院 甘肃省农学会

甘肃农业科技

影响因子:0.768
ISSN:1001-1463
年,卷(期):2024.3(10)