欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2012, Vol. 31 ›› Issue (07): 1714-1717.

• 研究报告 • 上一篇    下一篇

三种除草剂对外来入侵植物大狼耙草的防除效果

汪小飞1**,黄奏义1,汪传友2,吴磊3,金亮亮1,马敏1,张银1   

  1. (1黄山学院, 安徽黄山 245041; 2黄山园林局, 安徽黄山 245000; 3安徽农业大学, 合肥 230036)
  • 出版日期:2012-07-10 发布日期:2012-07-10

Controlling effect of three herbicides on an alien invasive plant Bidens frondosa.

WANG Xiao-fei1**, HUANG Zou-yi1, WANG Chuan-you2, WU lei-3, JIN Liang-liang1, MA Min1, ZHANG Yin1   

  1. (1Huangshan University, Huangshan 245041, Anhui, China; 2Huangshan Bureau of Landscaping, Huangshan 245000, Anhui, China; 3Anhui Agricultural University, Hefei 230036, China)
  • Online:2012-07-10 Published:2012-07-10

摘要: 大狼耙草是危害生物多样性的一种恶性杂草。使用使它隆、二甲四氯、草甘膦3种除草剂对大狼耙草进行不同浓度、不同防治时期防除效果研究,结果表明:使它隆对大狼耙草平均致死率为92%,二甲四氯为85%,草甘膦为82%,但三者差异不显著;高、中、低3种浓度(使它隆分别为0.47、0.40、0.33 g·L-1,二甲四氯分别为2.80、2.33、1.87 g·L-1,草甘膦分别为5.18、3.89、2.59 g·L-1)对大狼耙草致死率差异极显著,高浓度溶液防除效果较好;大狼耙草植株在幼苗期(植株高20 cm)、生长盛期(植株高40 cm)、花期(植株高60 cm)3个防治时期致死率差异极显著,幼苗期防除效果理想。研究表明,在大狼耙草幼苗期使用0.47 g·L-1浓度的使它隆防除效果最好。

关键词: 日光温室, 黄瓜, 叶片温度, 相对湿度, 估计模型

Abstract: Bidens frondosa is an exotic vicious weed which endangers biodiversity. In this study, a field experiment was conducted to investigate the controlling effect of different concentrations and different application periods of herbicides Starane, MCPA, and glyphosate on B. frondosa. All the three herbicides had significant controlling effect on this weed, with the average lethality of Starane, MCPA, and glyphosate being 92%, 85%, and 82%, respectively, but no significant difference among them. Different concentrations of the herbicides (0.47, 0.40 and 0.33g·L-1 of Starane; 2.80, 2.33 and 1.87 g·L-1 of MCPA; and 5.18, 3.89 and 2.59 g·L-1 of glyphosate) had significant differences in the lethality on B. frondosa, and relatively high concentration could obtain better controlling effect. The application period of the herbicides also had significant effects in controlling B. frondosa. Applying the herbicides at B. frondosa seedling stage (plant height 20 cm) could achieve better controlling effect than at its fast growing stage (plant height 40 cm) and blooming stage (plant height 60 cm). It was suggested that applying 0.47 g·L1 of Starane at the seedling stage of B. frondosa would obtain the best controlling effect.

Key words: solar greenhouses, cucumber, leaf temperature, relative humidity, estimation model.