文献类型：期刊文献

英文题名：Deposition distribution, metabolism characteristics, and reduced application dose of difenoconazole in the open field and greenhouse pepper ecosystem

作者：Chen, Shiyu[1,2];Cai, Lin[5,6];Zhang, Houpu[2];Zhang, Qianke[2];Song, Jiajin[2];Zhang, Zihan[2];Deng, Yanfei[2];Liu, Yalei[1];Wang, Xiuguo[1];Fang, Hua[2,3,4]

机构：[1]Chinese Acad Agr Sci CAAS, Tobacco Res Inst, Qingdao 266101, Peoples R China;[2]Zhejiang Univ, Coll Agr & Biotechnol, Inst Pesticide & Environm Toxicol, Hangzhou 310058, Peoples R China;[3]Zhejiang Univ, Key Lab Mol Biol Crop Pathogens & Insects, Minist Agr, Hangzhou 310058, Peoples R China;[4]Zhejiang Univ, Key Lab Biol Crop Pathogens & Insects Zhejiang Pr, Hangzhou 310058, Peoples R China;[5]Guangdong Ocean Univ, Shenzhen Inst, Guangzhou, Guangdong, Peoples R China;[6]Guangdong Ocean Univ, Sch Chem & Environm, Guangzhou, Guangdong, Peoples R China

年份：2021

卷号：313

外文期刊名：AGRICULTURE ECOSYSTEMS & ENVIRONMENT

收录：SCI-EXPANDED(收录号：WOS:000636220800005)、、Scopus(收录号：2-s2.0-85101209793)、WOS

基金：This work was supported by the National Key Research and Development Program of China (No. 2016YFD0200205), the National Natural Science Foundation of China (No. 41877144), the Key Program of Natural Science Foundation of Zhejiang Province of China (No. LZ21B070002), and the Zhejiang Provincial Key Research and Development Program of China (No. 2018C02034).

语种：英文

外文关键词：Difenoconazole; Pepper anthracnose; Deposition; Metabolism; Field efficacy

外文摘要：The deposition, dissipation, and metabolism of difenoconazole as well as reduced application dose were studied in the open field and greenhouse pepper system. The deposition amount of difenoconazole gradually increased with the increasing dosages, which followed an order with upper leaf > lower leaf > upper stem > lower stem > cultivated soil > fruit. The dissipation half-lives of difenoconazole in different parts of pepper plant and cultivated soil were higher in the greenhouse than those in the open field. Difenoconazole was transformed to metabolite I (C16H13Cl2N3O2) in pepper plant, but metabolite II (C13H14ClN3O3) in cultivated soil. Additionally, the field control efficacy of difenoconazole at the 0.75-fold minimum recommended dosage could meet the basic control requirement after the first application for 7 d. The results revealed deposition distribution and metabolism characteristics of difenoconazole and the application dose may be effectively decreased in the open field and greenhouse pepper-planted ecosystem.