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- W2389667083 abstract "Pot experiments were conducted under greenhouse conditions to investigate Cd speciation sand phytoavailability in Cd contaminated soil after repeated croppings of different oilseed rape species and amended with compost. A Cd-accumulator oilseed rape Zhucang Huazi (ZC)and a non-accumulator oilseed rape ChuanyouⅡ-93(CY)were used in the study. A modified BCR three-step sequential extraction procedure was used to determine Cd speciation in the Cd contaminated soil. The results showed that amended with compost could reduce the phytoavailability of Cd in the contaminated soil. Cd concentrations in shoot tissues of the two oilseed rape cultivars decreased significantly when the soil amended with compost. Addition of compost to soil significantly reduced the concentration of Cd in the exchangeable and weak acid soluble fraction, but concentration of Cd in oxidisable fraction increased significantly. With the same compost amendment rate, Cd concentration in the exchangeable and weak acid soluble fraction decreased significantly after repeated croppings of oilseed rapes in the Cd contaminated soil. However, there were no significant differences in Cd concentrations of reducible fraction and oxidisable fraction between repeated croppings of oilseed rapes or not. No significant difference in Cd speciation was observed in the Cd contaminated soil between repeated croppings of Cd-accumulator oilseed rape Zhucang Huaz(iZC)and non-accumulator oilseed rape ChuanyouⅡ-93(CY). Hence, repeated croppings of oilseed rape and compost amendment significantly reduced the availability of Cd in contaminated soil." @default.
- W2389667083 created "2016-06-24" @default.
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- W2389667083 date "2009-01-01" @default.
- W2389667083 modified "2023-09-24" @default.
- W2389667083 title "Phytoavailability and Speciation of Cd in Contaminated Soil After Repeated Croppings of Oilseed Rapes and Amended with Compost" @default.
- W2389667083 hasPublicationYear "2009" @default.
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