Phytostabilization of mine waste: growth and physiological responses of Vigna unguiculata (L.) Walp.
Greenhouse experiments were carried out for phytoremediation of the Pb/Zn abandoned tailings (pH 3.2 and high metal content) of Rampura-Agucha Mines, Rajasthan. Vigna unguiculata (L.) Walp. (cowpea) was chosen as a test crop. On unamended tailings, the seeds of the test plant showed no germination. The tailing was amended with lime (3% on weight basis), 3% lime + NPK (diammonium phosphate at 60 kg/ha, muriate of potash at 40 kg/ ha) and 3% lime + FYM at 15 t/ha and used for experiments. Quantification of various parameters viz. shoot-root length, shoot-root dry weight, chlorophyll contents (a', 'b' and total) and peroxidase activity of test crop revealed T+ S + 3% lime + NPK to be the most suitable amelioration followed by FYM. The above treatments helped in improving the growth and productivity of the test plants by providing a favorable environment.
Kshirsagar
Shruti
S
Laboratory of Geobotany and Biogeochemistry, Department of Botany, University College of Science, M.L. Sukhadia University, Udaipur-313001, India.
Aery
N C
NC
D001673:Biodegradation, Environmental; D017610:Calcium Compounds / Q000494:pharmacology; D002734:Chlorophyll / Q000378:metabolism; D045424:Complex Mixtures / Q000494:pharmacology; D005308:Fertilizers; D007220:Industrial Waste / Q000009:adverse effects; D008372:Manure; D008906:Mining; D010087:Oxides / Q000494:pharmacology; D009195:Peroxidase / Q000378:metabolism; D027805:Phaseolus / Q000187:drug effects / Q000502:physiology*; D010710:Phosphates / Q000494:pharmacology; D018515:Plant Leaves / Q000187:drug effects / Q000378:metabolism; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development; D012989:Soil Pollutants / Q000633:toxicity
D017610:Calcium Compounds; D045424:Complex Mixtures; D005308:Fertilizers; D007220:Industrial Waste; D008372:Manure; D010087:Oxides; D010710:Phosphates; D012989:Soil Pollutants; C024788:ammonium phosphate; C518454:potash; D002734:Chlorophyll; C016538:lime; D009195:Peroxidase