两种钝化剂对镉污染土壤中百合镉吸收的影响

打开文本图片集

中图分类号：S157 文献标识码：A 文章编号：0488-5368（2025）06-0057-05

Abstract：This study compared the efectiveness of two passivators and organic fertilizer treatments in stabilizing cadmium in mildly pollted soil and examined their effects on cadmium uptake by Lilium lancifolium Thunb. The most efective treatment was identified as a potential solution for large-scale application.The findings provide technical support for reducing cadmium contamination in farmland soil and ensure the safe production of Lilium lancifolium Thunb.In cadmium-contaminated plots，treatment effectiveness was evaluated by measuring soil pH ，available cadmium，and the activities of urease，acid phosphatase，and invertase. Cadmium accumulation in Lilium lancifolium Thunb.was also analyzed under diferent treatments.The "Foshan Iron Man" passivator significantly increased soil pH by 25.22% ，reduced available cadmiumin soil by 4.54% ，decreased cadmium content in fresh bulbs of Lilium lancifolium Thunb. by 36.00% ，and enhanced the activities of acid phosphatase and invertase by 23.75% and 218.96% ，respectively. These results demonstrate that the " Foshan Iron Man" passivator is an effective agent for cadmium immobilization and is suitable for widespread application in agricultural production.

Key words：Passivators； Lilium lancifolium Thunb. ； Cadmium pollution；Diminish

湖南省龙山县是药用百合的主要集散地之一，也是全国规模最大的卷丹百合产区。（剩余8679字）