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| 神木市大豆玉米带状复合种植化学除草药剂筛选试验 |
| Screening of Chemical Herbicides for Soybean and Corn Strip Intercropping in Shenmu Region |
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| DOI： |
| 中文关键词: 玉米 大豆 除草剂 株防效 鲜重防效 |
| 英文关键词:Corn Soybeans Herbicides Plant control efficiency Fresh weight control effect |
| 基金项目: |
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| 摘要点击次数: 563 |
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| 中文摘要: |
| 为了解不同类型除草剂对神木市大豆玉米带状复合种植田间杂草的防除效果，选用4种土壤封闭药剂、3种玉米田茎叶处理除草剂和5种大豆田茎叶处理除草剂开展除草试验，分析不同药剂对杂草的株防效和鲜重防效。结果表明，土壤封闭处理使用96% 精异丙甲草胺乳油+80% 唑嘧磺草胺水分散粒剂，玉米和大豆出苗率最高，药害指数低，且施药后40 d田间株防效和鲜重防效均最高。玉米田茎叶处理使用30% 硝·烟·莠去津油悬剂，大豆田茎叶处理使用15% 精喹·氟磺胺乳油，施药后30 d田间株防效和鲜重防效均最高。筛选出的这几种药剂可作为大豆玉米带状复合种植田的化学除草推荐药剂使用。 |
| 英文摘要: |
| To evaluate the effectiveness of different herbicides in controlling weeds in soybean and corn strip intercropping field in Shenmu, field experiments were conducted using four soil-applied pre-emergence herbicides, three post-emergence herbicides for corn, and five post-emergence herbicides for soybean. The weed control efficacy was analyzed based on plant suppression rates and fresh weight reduction. The results showed that pre-emergence application of 96% S-metolachlor emulsifiable concentrate + 80% pyroxasulfone water-dispersible granules resulted in the highest seedling emergence rates for both corn and soybean, with the lowest phytotoxicity index. This treatment achieved the highest weed suppression in terms of plant count and fresh weight reduction 40 days after application. For post-emergence treatments,30% nicosulfuron+topramezone+atrazine oil suspension was the most effective in corn fields, while 15% quizalofop-P-ethyl + flumioxazin emulsifiable concentrate provided the highest weed control efficacy in soybean fields, with maximum plant suppression and fresh weight reduction observed 30 days after application. These selected herbicides are recommended for effective weed management in soybean and corn strip intercropping systems. |
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