Uptake and Activation of Insoluble Pd in Soil by Brassica juncea

[Objective] The rules of uptake and activation of insoluble Pd in calcareous soil by Brassica juncea were studied.[Method] The pot experiment was carried out to study the effect of Brassica juncea on the absorption of insoluble Pb and the purification efficiency.[Result] Indian mustard could absorb insoluble Pb and grew well.Pb uptake by Brassica juncea was existed in root and higher than 80%.The difference DTPA-extractable Pb in rhizosphere and non-rhizosphere of Brassica juncea was not significant.The Pb purification rate of the soil by Brassica juncea was 0.01%-0.02% at this test condition.[Conclusion] The effect of Brassica juncea on the purification of insoluble Pb in simulated calcareous polluted soil was not ideal.