Mechanism of the effect of pH and biochar on the phytotoxicity of the weak acid herbicides imazethapyr and 2,4-D in soil to rice (Oryza sativa) and estimation by chemical methods

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成果类型：

期刊论文

作者：

Liu, Kailin*;He, Ying;Xu, Shiji;Hu, Lifeng;Luo, Kun;...

通讯作者：

Liu, Kailin;Bai, Lianyang

作者机构：

[Liu, Kailin; Luo, Kun; He, Ying; Hu, Lifeng; Liu, Xiangying; Liu, Min; Xu, Shiji; Zhou, Xiaomao; Liu, KL; Bai, Lianyang] Hunan Agr Univ, Coll Plant Protect, Changsha 410128, Hunan, Peoples R China.

[Zhou, Xiaomao; Bai, Lianyang] Hunan Acad Agr Sci, Biotechnol Res Ctr, Changsha 410125, Hunan, Peoples R China.

[Liu, Kailin; Luo, Kun; Hu, Lifeng; Liu, Xiangying; Liu, Min; Zhou, Xiaomao; Bai, Lianyang] Collaborat Innovat Ctr Farmland Weeds Control, Loudi, Hunan, Peoples R China.

通讯机构：

[Liu, KL; Bai, LY] H

Hunan Agr Univ, Coll Plant Protect, Changsha 410128, Hunan, Peoples R China.

语种：

英文

关键词：

Adsorption;Bioactivity;Hollow fiber-based liquid-phase microextraction;Phytotoxicity;Rice;Weak acid herbicides

期刊：

Ecotoxicology and Environmental Safety

ISSN：

0147-6513

年：

2018

卷：

161

页码：

602-609

DOI：

10.1016/j.ecoenv.2018.05.096

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41301568]; Science and Technology Plan Projects of Hunan Province [2016JC2029]; Special Fund for Agro-Scientific Research in the Public Interest [201303031]

机构署名：

本校为第一且通讯机构

院系归属：

植物保护学院

摘要：

The existing form of an ionizable organic compound can simultaneously affect its soil adsorption and plant bioactivity. In this experiment, the adsorption and bioactivity of two weak acid herbicides (WAHs), imazethapyr and 2,4-D, were studied to explore the predominant mechanism by which the soil pH and the addition of biochar can influence the phytotoxicity of WAHs in soil. Then, the WAH concentration extracted by hollow fiber-based liquid-phase microextraction (C HF-LPME ), the in situ pore water concentration (C IPW ) and the added concentra...

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Mechanism of the effect of pH and biochar on the phytotoxicity of the weak acid herbicides imazethapyr and 2,4-D in soil to rice (Oryza sativa) and estimation by chemical methods

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