Effect of fertilizers on Cd uptake of Amaranthus hypochondriacus, a high biomass, fast growing and easily cultivated potential Cd hyperaccumulator

International Journal of Phytoremediation
Ning Yu LiZhian Li

Abstract

In a greenhouse pot experiment, we assessed the phytoextraction potential for Cd of three amaranth cultivars (Amaranthus hypochondriacus L. Cvs. K112, R104, and K472) and the effect of application of N, NP, and NPK fertilizer on Cd uptake of the three cultivars from soil contaminated with 5 mg kg(-1) Cd. All three amaranth cultivars had high levels of Cd concentration in their tissues, which ranged from 95.1 to 179.1 mg kg(-1) in leaves, 58.9 to 95.4 mg kg(-1) in stems, and 62.4 to 107.2 mg kg(-1) in roots, resulting in average bioaccumulation factors ranging from 17.7 to 29.7. Application of N, NP, or NPK fertilizers usually increased Cd content in leaves but decreased Cd content in stem and root. Fertilizers of N or NP combined did not substantially increase dry biomass of the 3 cultivars, leading to a limited increment of Cd accumulation. NPK fertilizer greatly increased dry biomass, by a factor of 2.7-3.8, resulting in a large increment of Cd accumulation. Amaranth cultivars (K112, R104, and K472) have great potential in phytoextraction of Cd contaminated soil. They have the merits of high Cd content in tissues, high biomass, easy cultivation and little effect on Cd uptake by fertilization.

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Citations

Jun 26, 2013·Environmental Geochemistry and Health·Yiping TaiJianxia Zhang
May 6, 2014·Environmental Science and Pollution Research International·Qingyun WangHailin Zhang
May 8, 2014·Environmental Science and Pollution Research International·Huan-Ping LuMurray B McBride
Mar 24, 2016·Environmental Monitoring and Assessment·Yiping TaiMurray B Mcbride
Nov 12, 2015·International Journal of Phytoremediation·Georgina D ArthurJohannes Van Staden
Mar 10, 2015·International Journal of Phytoremediation·Kai LuoPeter Christie
Nov 15, 2014·International Journal of Phytoremediation·Chuifan ZhouXiangqing Ma
Jun 2, 2016·Environmental Science and Pollution Research International·Ayaz AhmadAmin Ullah Jan
Jan 23, 2019·International Journal of Phytoremediation·Peng ZengChi Peng
Jul 18, 2019·Environmental Science and Pollution Research International·Kang WangHuafen Li
Jan 5, 2020·Environmental Science and Pollution Research International·Xiangshi KongXingjun Tian
Nov 17, 2016·Environmental Science and Pollution Research International·Zhenling HuangChuanqin Xia
Jan 22, 2020·Environmental Science and Pollution Research International·Bahram GholinejadAsghar Farajollahi
Jan 5, 2014·Environmental Science & Technology·Mang LuXue-Jiao Wu

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Methods Mentioned

BETA
flame atomic absorption spectrometry

Software Mentioned

SPSS

Related Concepts

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