GUO Xiaotong,WANG Yu,LUO Chan,et al.Control Efficacy of 33% Quizalofop-P-Tefuryl·Bentazone EC on Annual Weeds in Soybean Field[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(12):29-34.[doi:10.11942/j.issn1002-2767.2024.12.0029]
33%喹禾糠酯·灭草松乳油对大豆田一年生杂草的防除效果
- Title:
- Control Efficacy of 33% Quizalofop-P-Tefuryl·Bentazone EC on Annual Weeds in Soybean Field
- 文章编号:
- 5
- Keywords:
- soybean; quizalofop-P-tefuryl·bentazone; weed control efficacy; yield
- 文献标志码:
- A
- 摘要:
- 为了明确茎叶除草剂33%喹禾糠酯·灭草松乳油在不同剂量处理下对大豆田一年生杂草的防效，利用随机区组方法开展田间小区试验。结果表明，33%喹禾糠酯·灭草松乳油在制剂用量1 500 mL·hm-2以上对大豆田稗草、藜、本氏蓼、龙葵、苘麻等有较好的防效。施药后30 d，对大豆田杂草总的株防效及鲜重防效分别为85.5%~97.7%和89.3%~99.2%，且各个剂量处理下大豆均未出现药害症状。产量测定结果表明，33%喹禾糠酯·灭草松乳油各处理区与空白对照相比均增产显著，增产率为187.5%~216.9%，说明该药剂对大豆安全的同时对杂草具有较好的防效。适宜的33%喹禾糠酯·灭草松乳油施药剂量为1 500 ~ 1 800 mL·hm-2（即有效成分量495.0~594.0 g·hm-2）。
- Abstract:
- In order to confirm the control effect of stems-leaves spraying herbicide 33% quizalofop-P-tefuryl·bentazone EC on annual weeds in soybean field under different treatments, the field trials were conducted using randomized block method. The results denoted that 33% quizalofop-P-tefuryl·bentazone EC had a better control effect on the annual weeds Echinochloa crus-galli L., Chenopodium album L., Persicaria bungeana (Turcz.) Nakai ex T. Mori, Solanum nigrum L. and Abutilon theophrasti Medikus in soybean field when the dose was more than 1 500 mL·ha-1. The plant control efficacy and fresh weight control efficacy on the total weed were respectively 85.5%-97.7% and 89.3%-99.2% after application 30 days, and there were no phytotoxicity to soybean under each treatment. The results of yield measurement indicated that the yield increase of 33% quizalofop-P-tefuryl·bentazone EC in each treatment was significantly increased compared with the blank control, and the incremental production rates was 187.5%-216.9%. And it showed that 33% quizalofop-P-tefuryl·bentazone EC was safe for soybean and had better control effect on weeds. The appropriate dose is 1 500-1 800 mL·ha-1 (the effective component of 495.0-594.0 g·ha-1).
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备注/Memo
收稿日期：2023-11-02