Cd Activation Mechanisms of High-Enriched Rapeseed (Brassica Napus L.) in Rhizosphere Soil

The study aimed to explore the Cd activation mechanisms of high-enriched rapeseed in rhizosphere soil. A pot experiment was carried out to compare the differences of pH, organic matter, oxidation reduction potential, cation exchange capacity and organic acids in rhizosphere soil among high-enriched (H), middle-enriched (M) and low-enriched (L) cultivars under slightly and moderately Cd contaminated farmlands (5 and 10 mg kg− 1). Bioconcentration factor and removal efficiency in shoot of H were on average 25.5