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Ying Yong Sheng Tai Xue Bao. 2013 Jun;24(6):1615-20.

[Effects of applying tea seed meal and EDTA on the speciation transformation and phyto-availability of nickel and zinc in soil].

[Article in Chinese]

Author information

  • 1College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China. yubhj1314@163.com

Abstract

A pot experiment with sugarcane was conducted to study the effects of applying tea seed meal and EDTA on the speciation transformation and phyto-availability of nickel (Ni) and zinc (Zn) in soil. With the increasing application rate of tea seed meal, the biomass of sugarcane root, stem, and leaf increased gradually, but no significant difference was observed in the stem and leaf biomass between EDTA treatments and the control. Applying tea seed meal and EDTA increased the acid-soluble Ni and Zn contents in soil, and promoted the bioconcentration and translocation of Ni and Zn in sugarcane. Meanwhile, the strengthening effect increased gradually with the increasing application rate of tea seed meal. As compared with EDTA, tea seed meal was more efficient in improving the accumulation of Ni and Zn in sugarcane, and thus, made the sugarcane remove more Ni and Zn from soil. The Ni and Zn contents in sugarcane stem and leaf had significant positive correlations with the application rate of tea seed meal, while the Ni and Zn contents in sugarcane root were significantly negatively correlated with the application rate of tea seed meal.

PMID:
24066548
[PubMed - in process]
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