[Accumulation, chemical fractions and phytoavailability of Cr in tannery sludge-amended soils].
The phytoavailability of various fractions in the tannery sludge amended soils was investigated employing a sequential extraction procedure as well as seedling culture experiment. The results showed that 2 mol/L HCl extractable Cr could be the major fraction of soil Cr available to the plants. When the Cr content in soil was about 220 mg/kg, the Cr concentration of in plant reached maximum of 23.5 mg/kg, which was hardly approachable in field condition.
Ma
H
H
Northwest Institute of Light Industry, Xianyang Shanxi 712081.
Li
G
G
Zhang
C
C
Ding
S
S
Yu
C
C
D002857:Chromium / Q000737:chemistry / Q000493:pharmacokinetics*; D012722:Sewage; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000493:pharmacokinetics*
D012722:Sewage; D012987:Soil; D012989:Soil Pollutants; D002857:Chromium