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Influence of organic amendment on the adsorption and leaching of ethametsulfuron-methyl in acidic soils in China

文献类型:期刊论文

作者Si, YB; Zhang, J; Wang, SQ; Zhang, LG; Zhou, DM
刊名GEODERMA
出版日期2006
卷号130期号:1-2页码:66-76
关键词ethametsulfuron-methyl adsorption leaching organic amendment soil
ISSN号0016-7061
DOI10.1016/j.geoderma.2005.01.009
通讯作者Si, YB(ybsi2002@yahoo.com.cn)
英文摘要The sorption and leaching of ethametsulfuron-methyl by an acidic soil, after organic amendment with humic acid (HA) and a commercial peat, were studied in batch and soil column experiments. Adsorption capacity (K-f) values, obtained by fitting the experimental data to the Freundlich equation, ranged from 4.39 for the original soil containing 1.02% OC to 10.56 for the organic amended soils containing 2.61% OC. The increase in herbicide adsorption by organic amendment addition to soil was attributed to the high adsorptive capacity of the insoluble organic matter added to the soil. Evidence provided by FT-IR analysis suggested multifunctional hydrogen bonds were involved in the adsorption of ethametsulfuron-methyl on organic matter. The distribution of etbametsulfuron-methyl along the soil profile, obtained from soil column experiments, indicated that the amount of ethametsulfuron-methyl retained ranged from 68.4% for the column filled with the original soil to 92.4% for that filled with the organic amended soil. Amounts of ethametsulfuron-methyl recovered in the leachates, which ranged from 7.7% (organic amended soil) to 23.7% (unamended soil) of that applied, depended upon the loading rate and the source of organic amendment. Organic amendments significantly reduced the leaching of ethametsulfuron-methyl, and humic acid showed the higher potential than peat. This research suggests that organic amendment may be an effective management practice for controlling pesticide leaching. (c) 2005 Elsevier B.V. All rights reserved.
收录类别SCI
WOS关键词HUMIC SUBSTANCES ; SEWAGE-SLUDGE ; AMENDED SOILS ; S-TRIAZINE ; SORPTION ; TRANSPORT ; ATRAZINE ; MATTER ; METABOLISM ; HERBICIDES
WOS研究方向Agriculture
WOS类目Soil Science
语种英语
WOS记录号WOS:000234709500006
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.cn/handle/1471x/2558557
专题南京土壤研究所
通讯作者Si, YB
作者单位1.Anhui Agr Univ, Coll Resource & Environm Sci, Hefei 230036, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Si, YB,Zhang, J,Wang, SQ,et al. Influence of organic amendment on the adsorption and leaching of ethametsulfuron-methyl in acidic soils in China[J]. GEODERMA,2006,130(1-2):66-76.
APA Si, YB,Zhang, J,Wang, SQ,Zhang, LG,&Zhou, DM.(2006).Influence of organic amendment on the adsorption and leaching of ethametsulfuron-methyl in acidic soils in China.GEODERMA,130(1-2),66-76.
MLA Si, YB,et al."Influence of organic amendment on the adsorption and leaching of ethametsulfuron-methyl in acidic soils in China".GEODERMA 130.1-2(2006):66-76.

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来源:南京土壤研究所

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