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Position: Home > Articles > Glyphosate technology for controlling perennial sowthistle Agrochemicals 2006,45 (10) 60-62+64

草甘膦对苣荬菜的防除技术

作  者:
顾成波;李学锋;赵长山
单  位:
中国农业大学理学院;东北林业大学森林植物生态学教育部重点实验室 哈尔滨150040;东北农业大学农学院
关键词:
草甘膦;苣荬菜;芽根;叶龄
摘  要:
采用盆栽试验方法,运用三因素五水平二次正交旋转组合设计,研究了不同条件下草甘膦对苣荬菜地下部芽根的防除效果,建立了以芽根死亡长度为函数的数学模型。模型解析结果表明,草甘膦对芽根的防除长度受芽根本身长度影响最大,其次为草甘膦用药量和苣荬菜叶龄大小。当苣荬菜8叶龄,草甘膦用量2827ga.i./hm2时,草甘膦对苣荬菜的防除效果最好,对芽根的最大防除长度为36.40cm。
译  名:
Glyphosate technology for controlling perennial sowthistle
作  者:
GU Cheng-bo1,2,LI Xue-feng1,ZHAO Chang-shan3(1.College of Science,China Agriculture University,Beijing 100094,China;2.Key Laboratory of ForestPlant Ecdogy,Ministry of Education,Northeast Forest University,Harbin 150040,China;3.Agricultural College,Northeast Agriculture University,Harbin 150030,China)
关键词:
glyphosate;perennial sowthistle;rootstock;leaf stage
摘  要:
Potted plants experiments were conducted to determine glyphosate efficacy on underground portions ofperennial sowthistle using a rational regression design with three factors and five levels.A mathematical model wasestablished as a function of the length of dead rootstocks.The most important factor influencing dead rootstock lengthwas length of the rootstocks themselves.Glyphosate rate and perennial sowthistle leaf stage also affected deadrootstock length,though to a lesser extent.Maximum control by glyphosate was obtained with 8-leaf perennialsowthistle and glyphosate at 2827 g a.i./ha.Maximum rootstock control length was 36.40cm.

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