Study on Efficient Improvement of Phytoextraction of Ni from Contaminated Soil

Phytoremediation has been regarded as a suitable technique for the pollution control of Ni contaminated soils. In this paper two methods of efficient improvement of phytoextraction are discussed: first, to improve the uptake of Ni by plants by increasing Ni concentration in soil solution; second, to adopt some means based on physiological mechanism of heavy metal hyperaccumulators.