title: Effect of fertilizer amendments on phytoremediation of Cd-contaminated soil by a newly discovered hyperaccumulator Solanum nigrum L.
abstract: Phytoremediation is a cost-effective, simple and sustainable beneficiary technique to purify the polluted environment. Solanum nigrum L., a newly found cadmium (Cd) hyperaccumulator, has shown the potential to remediate Cd-contaminated soils. Present study investigated the effects of fertilizer amendments on the Cd uptake by S. nigrum. Chicken manure and urea are usual agricultural fertilizers and more environmental friendly. The results showed that Cd concentrations in shoots of S. nigrum were significantly decreased (p<0.05) by 28.2-34.6%, as compared to that of without the addition of chicken manure, but not the case for urea treatment. However, Cd extraction capacities (microg pot(-1)) in shoot biomass of S. nigrum were significantly increased (p<0.05) due to increased shoot biomass. In addition, available Cd concentration in soil significantly decreased due to addition of chicken manure. Thus, urea might be a better fertilizer for strengthening phytoextraction rate of S. nigrum to Cd, and chicken manure may be a better fertilizer for phytostabilization.
authors: Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China. shuhewei@yahoo.com.cn
authors: Shuhe
authors: S
authors: Wei
authors: Yunmeng
authors: Y
authors: Li
authors: Qixing
authors: Q
authors: Zhou
authors: Mrittunjai
authors: M
authors: Srivastava
authors: Siuwai
authors: S
authors: Chiu
authors: Jie
authors: J
authors: Zhan
authors: Zhijie
authors: Z
authors: Wu
authors: Tieheng
authors: T
authors: Sun
mesh_terms: D001673:Biodegradation, Environmental; D002104:Cadmium / Q000378:metabolism*; D005308:Fertilizers; D008372:Manure / Q000382:microbiology; D012989:Soil Pollutants / Q000378:metabolism*; D032324:Solanum nigrum / Q000378:metabolism*; D014508:Urea / Q000494:pharmacology
chemical_list: D005308:Fertilizers; D008372:Manure; D012989:Soil Pollutants; D002104:Cadmium; D014508:Urea