CAO Li-ping.Control Effect of 240 g?L-1Oxyfluorfen EC on Annual Weeds in Rice Field[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(04):40-43.[doi:10.11942/j.issn1002-2767.2021.04.0040]
240 g·L-1乙氧氟草醚EC对水稻田一年生杂草防效研究
- Title:
- Control Effect of 240 g?L-1Oxyfluorfen EC on Annual Weeds in Rice Field
- Keywords:
- rice; weeds; oxyfluorfen EC; control
- 文献标志码:
- A
- 摘要:
- 为高效防治稻田杂草，明确240 g?L-1乙氧氟草醚EC对水稻的安全性以及其对禾本科、阔叶及莎草科一年生杂草的防除效果，在水稻移栽前5~7 d，采用药土法进行施药，进行了田间小区药效试验。结果表明：施用240 g?L-1乙氧氟草醚EC 15,20,25和40 mL?667 m-2(制剂用量)40 d后，对水稻田稗草、千金子、异型莎草、雨久花、泽泻等一年生禾本科杂草、莎草科及阔叶杂草的鲜重防效为89.7%～100.0%，水稻增产97.6%～109.8%。240 g?L-1乙氧氟草醚EC在推荐使用剂量内对水稻安全，可有效控制水稻田恶性杂草。
- Abstract:
- In order to control weeds in rice field more efficiently,the safety of 240 g?L-1 oxyfluorfen EC on rice and its control effect on annual weeds of Gramineae,broadleaf weeds and Cyperaceae were determined.The field plot efficacy test was carried out by using medicinal soil method 5-7 days before rice transplanting.The results showed that after applying 240 g?L-1 oxyfluorfen EC 15,20,25,40 mL?667 m-2 (dosage) for 40 days,the control effect on fresh weight of annual gramineous weeds,Cyperaceae and broad-leaved weeds in rice field was 89.7%-100.0%,and rice yield increased by 97.6%-109.8%.240 g?L-1 oxyfluorfen EC is safe to rice at the recommended dosage,and can effectively control the malignant weeds in rice field.
参考文献/References:
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备注/Memo
收稿日期：2020-12-07