title: Remediation and Safe Production of cd Contaminated Soil Via Multiple Cropping Hyperaccumulator Solanum nigrum L. and Low Accumulation Chinese Cabbage.
abstract: Multiple crop experiment of hyperaccumulator Solanum nigrum L. with low accumulation Chinese cabbage Fenyuanxin 3 were conducted in a cadmium (Cd) contaminated vegetable field. In the first round, the average removal rate of S. nigrum to Cd was about 10% without assisted phytoextraction reagent addition for the top soil (0-20 cm) with Cd concentration at 0.53-0.97 mg kg(-1) after its grew 90 days. As for assisted phytoextraction reagent added plots, efficiency of Cd remediation might reach at 20%. However, in the second round, Cd concentration in Chinese cabbage was edible, even in the plots with assisted phytoextraction reagent added. Thus, multiple cropping hyperaccumulator with low accumulation crop could normally remediate contaminated soil and produce crop (obtain economic benefit) in one year, which may be one practical pathway of phytoremediating heavy metal contaminated soil in the future.
authors.affiliation: a School of Municipal & Environmental Engineering, Shenyang Jianzhu University , Shenyang , PR China.
authors.forename: Mingfen
authors.initials: M
authors.lastname: Niu
authors.forename: Shuhe
authors.initials: S
authors.lastname: Wei
authors.forename: Jiayi
authors.initials: J
authors.lastname: Bai
authors.forename: Siqi
authors.initials: S
authors.lastname: Wang
authors.forename: Dandan
authors.initials: D
authors.lastname: Ji
mesh_terms: D001673:Biodegradation, Environmental; D029741:Brassica rapa / Q000378:metabolism*; D002104:Cadmium / Q000378:metabolism*; D012037:Refuse Disposal; D012989:Soil Pollutants / Q000378:metabolism*; D032324:Solanum nigrum / Q000378:metabolism*
chemical_list: D012989:Soil Pollutants; D002104:Cadmium
keywords: hyperaccumulator; low accumulation crop; multiple crop