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为了研究改良剂施用量对重金属Cd污染植烟土壤的修复效果,在湖北恩施“清江源”科技园区采取盆栽方法,人工模拟Cd污染,试验研究了不同改良剂用量对土壤中总Cd、交换态Cd及烤烟叶片中Cd含量的影响。结果表明,施用改良剂使植烟土壤p H值升高,阳离子交换量显著增加,交换性Cd含量显著降低。施用改良剂显著降低了烤烟中部叶Cd积累量,最大降幅达51.59%
In order to study the effect of modifier on the remediation effect of heavy metal Cd-contaminated tobacco soil, a pot experiment was conducted in Enshi, Qingjiang Province, Hubei Province to simulate Cd pollution. The effects of different amendments on total Cd, Exchangeable Cd and Cd content in flue - cured tobacco leaves. The results showed that p H value increased, cation exchange capacity increased significantly, and exchangeable Cd content decreased significantly. Application of improver significantly reduced the Cd accumulation in the middle leaves of flue-cured tobacco, the largest decrease of 51.59%