enhanced phytoextraction of cu, pb, zn and cd with edta and edds.chemically enhanced phytoextraction has been proposed as an effective approach to removing heavy metals from contaminated soil through the use of high biomass plants. using pot experiments, the effects of the application of edta, edds and citric acid on the uptake of cu, pb, zn and cd by corn (zea mays l. cv. nongda 108) and bean (phaseolus vulgaris l. white bean) plants were studied. the results showed that edds was more effective than edta at increasing the concentration of cu in corn and bean ...200515698638
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