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松树和杨树林下土壤微生物对灭幼脲3号降解代谢的研究 被引量:1

STUDY ON DEGRADATION AND METABOLISM OF MIEYOUNIAOSANHAO BY SOIL MICROORGANISMS UNDER THE POPLAR AND PINE WOODS
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摘要 三北防护林地带,食叶性害虫经常暴发,使用灭幼脲3号(简称灭幼脲)杀虫剂进行防治,取得了较好效果,为应用杀虫剂对生态环境的安全性提供依据,我们进行了油松林和杨树(小美旱、黑杨)林下土壤微生物对灭幼脲的降解转化的研究。一、实验方法 (一)灭幼脲在不同树种林下土壤中消失动态 1987年6月2日于北京西郊人工杨树(小美旱、黑杨)林内,每亩喷25%灭幼脲胶悬剂40g杀灭杨毒蛾等,间隔不同时间分别多点采集土样,到8月1日止。1988年5月4日于陕西韩城雷寺庄林场。 the results from this study show that the contents of Mieyouniaosanhao insecticide (l-'4-chlorophenyl'-3-'2-chlorobenzoyl'urea) in soil under poplar and pine woods dicreased continually, with time and its half life was 12 days. Bacteria and fungi were isolated from forest soil. Bacteria identified to be Pseudomonas testoeteroni, Acinetobacter calcoacticus from poplar forest soil, P. alcaligenes and Acinetobacter calcoaceticus from pine woods soil, as well as fungi were all able to degrade Mieyounaosanhao so that soil microorganism played an important role in degradation of Mieyouniaosanhao. The two metabolites of 4-chlorophenyurea and 4-chloroaniline can be produced from the degradation of this insecticide, and can be also further degraded by soil microorganisms. Therefore, it was concluded that the Mieyouniaosanhao insecticide was easily degraded by soil microorganisms, and it can be used safely without pollution in soil enviroment.
作者 施国涵
出处 《林业科学》 EI CAS CSCD 北大核心 1991年第4期452-456,共5页 Scientia Silvae Sinicae
基金 七五"国家科技攻关专题"研究
关键词 松树 杨树 土壤 灭幼脲 降解代谢 Mieyounaosanhao Degradation and Metabolism Metabolite transform
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参考文献3

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  • 2施国涵,生态学报,1985年,5卷,3期
  • 3团体著者,土壤农业化学常规分析方法,1983年

同被引文献22

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