Abstract
Selenium (Se) is an essential micronutrient for humans but is toxic when consumed in excess through the food chain, such as vegetables. Therefore, it is imperative to understand the relationship between the bioavailability of Se in soil and its uptake in edible parts of vegetables. This study investigated Se bioavailability of Brassica juncea in six representative Chinese soils treated with different concentrations of exogenous selenate fertilizer (0-2 mg·kg-1) by comparing diffusive gradients in thin-films (DGT) and chemical extraction methods. The correlation coefficients between the Se uptake by Brassica juncea and soil available Se determined by different extraction methods was as follows: DGT > KCl > Water > EDTA > KH2PO4 > NaHCO3 extractions. In addition, soil properties were correlated between Brassica juncea and soil Se concentrations determined by chemical extraction methods, while the DGT method was independent of soil properties. DGT was more suitable for the measurement of Se thresholds for Udic Ferrisols, Mollisols, Stagnic Anthrosols, Fluviogenic Loamy Paddy soil, Silty Loam soil, and Calcaric Regosols with values of 373.34, 648.68, 436.29, 589.84, 295.35, and 464.95 μg·L-1, respectively. Thus, DGT may be an effec...Continue Reading
References
Mar 26, 2004·Chemosphere·Xiao-ping WangBei Wen
Nov 24, 2004·Journal of Chromatography. a·Chethaka KahakachchiJulian F Tyson
Jul 21, 2005·Journal of Trace Elements in Medicine and Biology : Organ of the Society for Minerals and Trace Elements (GMS)·Helinä Hartikainen
Jul 29, 2008·The Science of the Total Environment·Miguel Navarro-Alarcon, Carmen Cabrera-Vique
Nov 6, 2008·Environmental Science & Technology·Yuan TianHao Zhang
May 16, 2013·Journal of Environmental Quality·Wendan XiaoTingqiang Li
Jul 7, 2014·Chemosphere·Yasuo M Nakamaru, Javkhlantuya Altansuvd
Aug 19, 2015·Environmental Science and Pollution Research International·Yu YaoShi-Ming Ding
May 23, 2016·Journal of Hazardous Materials·Dong-Xing GuanLena Q Ma
Mar 28, 2017·Environmental Pollution·Qin PengDongli Liang
May 14, 2017·Chemosphere·Dan WangDongli Liang
Oct 17, 2017·Chemosphere·Yunchao DaiJialong Lv
Oct 29, 2017·Scientific Reports·Yunchao DaiJialong Lv
Dec 19, 2017·Environmental Pollution· NatashaMuhammad Imtiaz Rashid
Dec 22, 2017·Ecotoxicology and Environmental Safety·Habib UllahMd Manik Mian
May 11, 2018·Nutrition Journal·Jing WangBinggan Wei
Jun 4, 2018·Environmental Pollution·Kang TianBiao Huang
Dec 12, 2018·Ecotoxicology and Environmental Safety·Mengmeng JiaHaidong Zhang
Jul 2, 2019·The Science of the Total Environment·Mengke WangDongli Liang
Oct 31, 2019·Environmental Pollution·Qin PengDongli Liang