土壤环境中除草剂甲磺隆降解的研究I.土壤性质的影响

摘要/Abstract

摘要： 采用方差分析,研究了各土壤中不同形态甲磺隆残留量的差异程度;通过主因子分析,选出5个主因子,它们代表了整体信息量的90.4%;回归分析后建立了土壤性质和甲磺隆残留间的多元回归方程;经偏相关分析和通径分析得出,土壤pH值和微生物活性是甲磺隆降解的主要影响因素.

关键词: 甲磺隆, 除草剂, 土壤, pH值, 微生物活性, 二月兰, 土壤残留无机氮, 冬绿肥, 氮平衡, 氮素表观损失

Abstract: The ANOVA results showed that degradation of metsulfuron-methyl was different among various soils. Five principal factors were selected by principal factor analysis and they represented 90.4% of total information.The multivariate regression equations were established between soil properties and metsulfuron-methyl residues after stepwise regression analysis. The partial correlation and path analysis indicated that soil pHand microbial activity were the most significant factors controlling the degradation of metsulfuron-methyl in soils.

Key words: Metsulfuron-methyl, Herbicide, Soil, pH, Microbial activity, winter green manure, February orchid, nitrogen balance, apparent nitrogen loss, soil residual inorganic nitrogen

中图分类号:

S153.6
X592

汪海珍, 徐建民, 谢正苗, 叶庆富. 土壤环境中除草剂甲磺隆降解的研究I.土壤性质的影响[J]. 应用生态学报, 2003, (1): 79-84.

WANG Haizhen, XU Jianmin, XIE Zhengmiao, YE Qingfu . Degradation of metsulfuron-methyl in soils IEffect of soil properties[J]. Chinese Journal of Applied Ecology, 2003, (1): 79-84.

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