CUI Wen-hui,WANG Guo-jiao,LI Jian-dong,et al.Effect of Ambrosia trifida L.Competition on the Soybean Growth and Development with the Application of Herbicides[J].Soybean Science,2009,28(01):122-125.[doi:10.11861/j.issn.1000-9841.2009.01.0122]
除草剂条件下三裂叶豚草竞争对大豆生长发育的影响
- Title:
- Effect of Ambrosia trifida L.Competition on the Soybean Growth and Development with the Application of Herbicides
- 文章编号:
- 1000-9841(2009)01-0122-04
- Keywords:
- Soybean; Ambrosia trifida L.; Morphological index
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 在有无除草剂的影响下,研究不同密度三裂叶豚草(0、0.08、0.32株m-2)对大豆生长发育的影响,探究三裂叶豚草对大田旱生作物的危害表现。结果表明:未施除草剂条件下大豆的株高要大于施除草剂条件下大豆株高;施除草剂条件下,苗期大豆分枝数随三裂叶豚草密度的增加逐渐增加,在结荚期,则随豚草密度的增加而呈先增加后降低的趋势;大豆茎重在开花期和结荚期随着三裂叶豚草密度的增加而降低,大豆地下部分生物量,除开花期施除草剂的处理外,均随着三裂叶豚草密度的增加而呈先增加后减少的趋势。因此可通过向农田中适当的施用除草剂抑制三裂叶豚草对农作物的影响。
- Abstract:
- To investigate the effect of Ambrosia trifida L.competition on growth and development of soybean,planting density of 0,0.08,0.32 plant m-2Ambrosia trifida L.were adopted under two herbicides treatments.Results showed Ambrosia trifida L.had significant inhibiting effect on the soybean morphological indexes including plant height,branches and biomass.Plant height was shorter under the application of herbicide.Under the application of herbicides,branches were increased gradually at seedling,while showed increase and then decrease trend at podding as the density of Ambrosia trifida L increased.During blooming and podding,plant weight increased firstly and then decreased as the density of Ambrosia trifida L.increased.The root weight of soybean increased firstly and then decreased as the density of Ambrosia trifida L.increased except at blooming stage with herbicides.Results suggest applying herbicide could control giant ragweed in soybean field.
参考文献/References:
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备注/Memo
基金项目:辽宁省教育厅科学研究计划资助项目(05L396);沈阳农业大学青年教师科研基金项目(20070118)。