编制“商品有机肥料质量控制标准”的实践与体会

Practice and Experience in Working-out the Standard of Quality Control for Commercial Organic Fertilizers

商品有机肥因其原料复杂，极有可能存在一定数量的重金属等有害物质，而对土壤和生态环境带来不利影响。本“标准”对商品有机肥提出质量控制项目及标准限值，对肥料中养分的最低含量，重金属和有机污染物的最高允许浓度，以及卫生学指标作出了限定。

The raw materials which comprise commercial organic fertilizers are rather complicated and may contain certain quantity of toxic substances such as heavy metals, which could produce unpredictable adverse impact on soil and eco-environment. The standard presented and discussed below provides a set of quality control measures for commercial organic fertilizers.The standard includes the minimal nutritional concentrations, the maximal permissible concentrations of heavy metals and organic pollutants and the corresponding hygienic indices in a commercial fertilizer.