西伯利亚蓼防除技术研究

Prevent and control technologies for Polygonim sibircum

为研制西伯利亚蓼(Polygoni msibircum)防除技术,采用药剂、生物、农艺等方法对西伯利亚蓼进行防除试验,结果表明:西伯利亚蓼经各种防除措施处理后,其死亡率在45d内都逐步升高,但30d后,西伯利亚蓼又逐渐再生;采用药剂、翻耕补播和放牧等措施都能有效防除西伯利亚蓼,其中采用内吸传导型除草剂、草甘磷水剂和选择性除草剂2,4-D丁酯乳油防除西伯利亚蓼见效快、效果好,放牧效果次之,其他措施效果则相对较慢;各种措施都不能一次性根除西伯利亚蓼的危害,必须经过多次处理,综合防除才能控制其危害。草地退化是西伯利亚蓼蔓延的主要原因,采用药剂、农艺和生物等防除措施,提高管理和利用水平,能有效控制西伯利亚蓼的蔓延为害。

The medical,biological,agricultural measures were applied to prevent and control Polygonim sibircum.The result of this study showed that three measures led death rate of P.sibircum to gradual increase in the 45 days,and then P.sibircum regenerated gradually in the 30 days.Medical measure,overdrilling measure and heavy grazing showed a better control and prevent for P.sibircum,in which the herbicide glyphosate was the best measure to control P.sibircum and the heavy grazing followed it,and other measures did not work.This study indicated that any measures did not control P.sibircum once time,and had to be applied many times.Combing medical measure and biological measure and rational management,harmfulness of P.sibircum could be reduced.