SONG Weifeng.Control Effects of 31% Mesotrione·Nicosulfuron·Terbuthylazine OD on Annual Weeds in Maize Field[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(02):41-45.[doi:10.11942/j.issn1002-2767.2024.02.0041]
31%硝磺·烟嘧·特丁津可分散油悬浮剂防除玉米田一年生杂草药效试验
- Title:
- Control Effects of 31% Mesotrione·Nicosulfuron·Terbuthylazine OD on Annual Weeds in Maize Field
- 文章编号:
- 7
- Keywords:
- mesotrione; nicosulfuron; terbuthylazine; weeds; control efficacy
- 文献标志码:
- A
- 摘要:
- 为明确31%硝磺·烟嘧·特丁津可分散油悬浮剂对玉米田杂草的防治效果、最佳田间使用剂量及对玉米的安全性，本研究采用苗后茎叶喷雾处理，进行田间药效试验。结果表明，31%硝磺·烟嘧·特丁津可分散油悬浮剂在418.5~465.0 g·hm-2的有效成分用量下，施药15 d后对本氏蓼、反枝苋、稗草的株防效最高可达95.27%、93.65%和97.06%；施药30 d后对杂草鲜重防效分别达96.91%、96.02%和97.98%，均显著优于对照药剂;药后7和15 d对玉米药害等级均为1.0，未见对玉米产生明显药害，增产率相比于人工除草为-6.03%~-1.93%。综合用药成本及效果考虑推荐有效成分使用量为418.5~465.0 g·hm-2。31%硝磺·烟嘧·特丁津可分散油悬浮剂能够有效防除玉米田杂草并对玉米具有较好的安全性。
- Abstract:
- In order to determine the control effect of mesotrione·nicosulfuron·terbuthylazine 31% OD on weeds in maize field, the best field dosage and the safety of corn, this study used post seedling stem and leaf spray treatment and regular investigation to conduct field efficacy tests. The results showed that at a dosage of 418.5-465.0 g·ha-1, the mesotrione·nicosulfuron·terbuthylazine 31% OD had the highest plant control effects on Polygonum bungeanum, Amaranthus retroflexus, and Echinochloa crusgalli after 15 days of application, reaching 95.27%, 93.65%, and 97.06% respectively. After 30 days of application, the control effects on weed fresh weight were 96.91%, 96.02%, and 97.98%, all significantly better than the control agent. The amount of corresponding active ingredients was less than that of the control agent, and there was no significant harm to maize, compared to manual weeding treatment, the yield increase rate was from -6.03% to -1.93%. Considering the comprehensive cost and effectiveness of medication, the recommended dosage was 418.5-465.0 g·ha-1. The mesotrione·nicosulfuron·terbuthylazine 31% OD can effectively control weeds in corn fields and has good safety for maize.
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备注/Memo
收稿日期：2023-10-16