四川省常用肥料重金属含量调查分析

目的]调查四川省常用肥料中重金属含量,为农产品安全生产提供基础数据。方法]对四川省常用肥料(过磷酸钙、复合肥料、有机-无机复混肥料和有机肥料)中的As、Pb、Cd、Cr、Hg总量进行了调查,参照我国国家标准及农业行业标准进行分析评价。结果]各类肥料样品中过磷酸钙、复混肥料、有机-无机复混肥料的重金属元素含量均未超标,但有机肥料样品中的As、Pb、Cd、Hg出现超标,超标率分别为5.9%、0.9%、4.1%、7.8%。结论]初步明确了四川省常用肥料中的重金属含量。

Survey and Analysis on Heavy Metal Content of Fertilizers Commonly Used in Sichuan Province

Objective] To survey and analyze heavy metals of fertilizers commonly used in Sichuan Province ,so as to provide basic data for safe production of agricultural products.Methods] A survey was carried out for As,Pb,Cd,Cr,and Hg in fertilizers commonly used in Sichuan Prov-ince.And analysis was done with reference to the national standards and agricultural standards of China .Results] The content of heavy metals in all kinds of fertilizer samples of superphosphate,compound fertilizer,organic and inorganic compound fertilizer did not exceed the standard,but Pb,Cd,As,and Hg in the organic fertilizers samples exceeded the standard.The percentage of exceeding standard was 5.9%,0.9%,4.1%,and 7.8%,respectively.Conclusion] It preliminarily makes clear the content of heavy metals in fertilizers commonly used in Sichuan Province.