TY - SER AU - Lotfy,S.M. AU - Abdel Bary,S.A. AU - El-Naka,E.A. AU - Abdel Sabour,M.F. TI - Influence of some chelators on the phytoextraction ability of sunflower (Helianthus annuus) for cd and pb metals in polluted soil KW - Sunflowers KW - Heavy metals KW - Absorption and adsorption KW - Plants KW - Effect of heavy metals on KW - Phytoalexins KW - Plant-soil relationships KW - Citric acid N1 - Includes reference N2 - Chelation and complexation of heavy metals were evaluated as practical ways to solubilize, detoxify, and enhance heavy metals accumultion by plants. sunflower (helianthus annuus) was selected as a potential heavy metals accumulator for metals in two selected soils different in texture and contamination levels. to enhance metals phyto-extraction, ammonium nitrate and organic chelators (edta, and citric acid) were added to soils at rates of 0 to 20 mmol kg⁻¹ pots experiment was run for 8 weeks UR - http://nile.enal.sci.eg/EALE/2009/ZJAR/3609/3/541.pdf ER -