Mercury is a global pollutant in the modern world. There is a large number of areas in the world where mercury is present in soils in significant quantities. Remediation methods which have traditionally been proposed may pose a risk of secondary mercury contamination and/or adverse health effects for cleaners. Phytoextraction of heavy metals from the soil environment is currently considered one of the promising non-invasive methods of remediation. But this approach has limited effectiveness. Chemically induced phytoextraction can increase the efficiency of this process both by converting less bioavailable mercury compounds to bioavailable fractions in the soil and by increasing the rate of transfer of metals in plants. This paper presents the results of a screening study of various chemical amendments to enhance the phytoextraction of mercury by Trifolium repens L. The results showed good potential for the induction of phytoextraction of phosphorus(P) and sulfur (S)-containing chelates. With this study, for the first time for the phytoextraction of mercury, the monoethanolamine salt of 2,2′-(ethylenedithio) diacetic acid was used as the S-containing chelate, and the disubstituted potassium salt of 1-hydroxy ethylidene-1,1-diphosphonic acid was used as the P-containing chelate. Further attention is given to study the effect that exogenous application of phytohormones and plant growth regulators has on the efficiency of mercury absorption and physiological status of plants, which performed well in combination with a P-containing chelate.

汞是现代世界中的全球污染物。世界上有许多地区的土壤中大量存在汞。传统上提出的补救方法可能会带来二次汞污染和/或对清洁人员健康造成不利影响的风险。从土壤环境中提取重金属目前被认为是有前途的非侵入性修复方法之一。但是这种方法效果有限。化学诱导的植物提取可以通过将土壤中生物利用度较低的汞化合物转化为生物利用度的分数，以及通过增加植物中金属的转移速度来提高该过程的效率。本文介绍了对各种化学修饰物进行筛选研究的结果，这些化学修饰物可通过以下方式增强汞的植物提取能力：白三叶。结果显示出诱导磷（P）和硫（S）螯合物的植物提取的良好潜力。这项研究首次将2,2'-（亚乙二硫基）二乙酸的单乙醇胺盐用作含S的螯合物，并将1-羟基亚乙基-1的二取代钾盐用于汞的植物提取。 1-二膦酸用作含P的螯合物。进一步关注研究外源应用植物激素和植物生长调节剂对汞吸收效率和植物生理状态的影响，与含P的螯合剂结合使用效果良好。