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为探明江西省烟田常用肥料中重金属的质量安全状况,采集了钙镁磷肥、镁肥、钾肥、硼肥、有机肥、有机-无机复混肥和烟草专用肥样品,通过ICP-MS法分析了样品中As、Cd、Cr、Cu、Hg、Ni、Pb和Zn的含量,并使用内梅罗指数法对其质量进行了评价。结果发现,江西省烟田肥料重金属含量总体处于安全水平,但各类肥料中重金属含量差异较大,钙镁磷肥、有机肥和有机-无机复混肥中重金属含量较高,且钙镁磷肥中Cr和有机-无机复混肥中As存在超标现象;镁肥、钾肥和硼肥中重金属含量较低。方差分析显示,钙镁磷肥中Cr和Ni、有机肥中Cd和Hg、有机-无机复混肥中Zn含量均显著高于其他肥料。
In order to find out the quality and safety status of heavy metals commonly used in tobacco fields in Jiangxi Province, calcium magnesium phosphate, magnesium fertilizer, potash fertilizer, boron fertilizer, organic fertilizer, organic-inorganic compound fertilizer and tobacco special fertilizer were collected and analyzed by ICP- The contents of As, Cd, Cr, Cu, Hg, Ni, Pb and Zn in the samples were analyzed and the quality was evaluated by Nemerow index. The results showed that the content of heavy metals in tobaccofields in Jiangxi Province was generally at a safe level, but the content of heavy metals in various types of fertilizers was quite different. The content of heavy metals in the Ca, Mg, P and organic-inorganic compound fertilizers was high, As exists in Cr and organic-inorganic compound fertilizers; the content of heavy metals in magnesium, potash and boron fertilizers is low. Analysis of variance showed that the contents of Cr and Ni in Ca-Mg-P, Cd and Hg in organic fertilizer and Zn in organic-inorganic compound fertilizer were significantly higher than those in other fertilizers.