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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Deposition, Distribution, Metabolism, and Reduced Application Dose of Thiamethoxam in a Pepper-Planted Ecosystem
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Deposition, Distribution, Metabolism, and Reduced Application Dose of Thiamethoxam in a Pepper-Planted Ecosystem

机译：在辣椒种植的生态系统中沉积，分布，新陈代谢和降低的含量剂量的祖紫红色

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摘要

To decrease the application dose of thiamethoxam (TMX) to control the pepper whitefly (Bemisia tabaci Q), the deposition, dissipation, metabolism, and field efficacy of TMX were investigated in a pepper (Capsicum annuum var. grossum)-planted ecosystem using eight types of nozzles at six concentrations (56.25, 41.25, 26.25, 21.0, 15.75, and 10.5 g a.i./hm(2)). The initial deposition amount of TMX in the pepper plant first increased and then decreased with increasing application dose. The optimum spray conditions of TMX were found to be a droplet size of 200 mu m volume median diameter and a spray volume of 350 L/hm(2). Moreover, three metabolites, TMX-dm, clothianidin (CLO), and C5H8O2N3SCl, were detected in the pepper-planted system. The dissipation rate of TMX in the pepper-field ecosystem was leaves > stems > fruits > roots > soils. The results revealed the deposition and fate of TMX in the pepper-field ecosystem, and the application dose could be reduced by 20% based on the minimum recommended dose for controlling pepper whitefly.
机译：为了减少硫氧化物（TMX）的施用剂量以控制胡椒粉（Bemisia Tabaci Q），在辣椒（Capsicum Annum Var.Grossum） - 使用八个生态系统中研究了TMX的沉积，耗散，代谢和场效应六个浓度的喷嘴类型（56.25,41.25,26.25,21.0,15.75和10.5g AI / HM（2））。辣椒植物中TMX的初始沉积量首先增加，然后随着施用剂量的增加而降低。发现TMX的最佳喷雾条件是液滴尺寸为200μm体积的直径，喷雾体积为350升/小时（2）。此外，在辣椒的系统中检测到三种代谢物，TMX-DM，衣物蛋白（CLO）和C5H8O2N3SCL。胡椒田生态系统中TMX的耗散率为叶子>茎>水果>根部>土壤。结果揭示了胡椒 - 场生态系统中TMX的沉积和命运，基于控制胡椒粉的最小推荐剂量，施用剂量可以减少20％。

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  • 作者

    Mei Jiajia; Ge Qiqing; Han Lingxi; Zhang Houpu; Long Zhengnan; Cui Yanli; Hua Rimao; Yu Yunlong; Fang Hua;

  • 作者单位

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Anhui Agr Univ Sch Resource &

    Environm Key Lab Agrifood Safety Hefei 230036 Anhui Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Coll Agr &

    Biotechnol Inst Pesticide &

    Environm Toxicol Hangzhou 310058 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 营养卫生、食品卫生;农业科学;
  • 关键词

    thiamethoxam; volume median diameter; reduced application dose; deposition; metabolism;

    机译：硫昔苏姆;体积中位数直径;减少施用剂量;沉积;新陈代谢;

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