DAI Liting,CHE Jingyu,ZHANG Qichang,et al.Effects of Herbicide Reduction Combined with Efficacy-Enhancing Adjuvants on Weed Control Effect and Spring Wheat Yield[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(06):31-36.[doi:10.11942/j.issn1002-2767.2024.06.0031]
除草剂减量配施增效助剂对杂草防效和春小麦产量的影响
- Title:
- Effects of Herbicide Reduction Combined with Efficacy-Enhancing Adjuvants on Weed Control Effect and Spring Wheat Yield
- 文章编号:
- 6
- Keywords:
- spring wheat; herbicide reduction; Jijian; control effect; yield
- 文献标志码:
- A
- 摘要:
- 为促进黑龙江省西部地区春小麦草害的农药减量防控和绿色生产，以克春9号为试验材料，通过田间试验，于2022年在克山地区研究除草剂减量与增效助剂激健混施对麦田杂草的防治效果和对小麦产量及产量性状的影响。结果表明，处理2（除草剂减施20%+增效助剂激健）和处理3（除草剂减施40%+增效助剂激健）对药后30 d杂草防治效果较好，二者株防效和鲜重防效最高；处理3产量最高，为5 567.22 kg·hm-2，与处理1（常规除草剂用量）无显著差异，该处理下有效穗数和千粒重为519.33万穗·hm-2和32.83 g，不孕小穗数最小，为0.23个，与处理2和处理1无显著差异，但与其余两个处理差异显著；相关分析表明，有效穗数、除草剂用量和千粒重对春小麦产量有促进作用，不孕小穗数对春小麦产量有显著负作用。因此，推荐该地区春小麦田除草最佳组合是除草剂减量40%与增效助剂激健混施。
- Abstract:
- In order to promote the prevention and control of pesticide reduction and green production of spring wheat grass in the western region of Heilongjiang Province，Kechun 9 was used as the experimental material. Through field experiments conducted in the Keshan Counry, in 2022, the impact of reduced herbicide dosages combined with efficacy-enhancing adjuvants on weed control in wheat fields, wheat yield, and yield traits was studied. The results indicated that，treatment 2 ( 20% reduction in herbicide usage combined with efficacy-enhancing adjuvants Jijian) and treatment 3(40% reduction in herbicide usage combined with efficacy-enhancing adjuvants Jijian) produced effective weed control, achieving the highest plant control effectiveness and fresh weight control effectiveness, respectively. The highest yield of 5 567.22 kg·ha-1 was recorded in the treatment of 40% reduction with vigorous stimulant, achieving results comparable to conventional dosages .Under this treatments, the number of effective spikes and 1000-grain weight were 519.33 spikes·ha-1 and 32.82 g, with the lowest number of sterile spikes at 0.23, showing no difference from the 20% reduction mixed with vigorous stimulant and conventional treatments.However, significant differences were noted compared to the other two treatments. Correlation analysis showed that spike number, herbicide dosage and 1000-grain weight played a facilitating role in the wheat yield, while the sterile spike number had a significant negative effect. Therefore, the recommended best practice for weed control in this region’s wheat fields is a 40% reduction in herbicides combined with the use of the effcacy-enhancing adjuvants Jijian.
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备注/Memo
收稿日期：2024-03-0