FIELD: agriculture.
SUBSTANCE: soils purification method from heavy metals presupposes growing of phyto - ameliorants on contaminated soils with their consecutive removal. Carthamus is used as an ameliorating plant. Seeds of carthamus are sowed into the contaminated soil in the amount of 20-22 kg/ha, adult plants are kept until end of blowing and beginning of lower leaves dying-off, thereafter phyto-ameliorant is totally removed from the soil.
EFFECT: total consumption of ions of heavy metals.
3 tbl, 1 ex
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Authors
Dates
2009-08-27—Published
2007-12-13—Filed