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目的测定富阳农村地区土壤和主要农产品中硒的含量,了解硒的分布特征,用以打造绿色生态农业,为新型农业生产和推广提供可靠依据。方法随机采集富阳农村地区农田中土壤和主要农产品大米、茶叶、水果、蔬菜、水产品、豆腐皮各20份,用氢化物原子荧光光谱法测定硒含量。结果本批次样品农田土壤硒含量在0.113 mg/kg~0.750 mg/kg,平均值为0.376 mg/kg,对应农作物大米中硒含量在0.023 mg/kg~0.064 mg/kg,平均值为0.041 mg/kg,水产品河虾、草虾硒含量在0.217 mg/kg~0.444 mg/kg,平均值为0.291 mg/kg,豆腐皮硒含量为0.026 mg/kg~0.064 mg/kg,平均值为0.047 mg/kg,茶叶和果蔬中硒含量较低。结论富阳地区农田土壤和主要农产品中硒含量分布不平衡,需根据当地的情况,科学合理地指导富硒农产品开发,发挥富阳农产品的资源优势,保障食品安全和维护消费者健康。
Objective To determine the content of selenium in soils and major agricultural products in Fuyang rural areas and to understand the distribution characteristics of selenium so as to build a green ecological agriculture and provide a reliable basis for new agricultural production and popularization. Methods 20 samples of rice, tea, fruits, vegetables, aquatic products and tofu skin from farmland and farmland in Fuyang were collected randomly. The content of selenium was determined by hydride generation atomic fluorescence spectrometry. Results The selenium content in the soil of this batch of farmland samples ranged from 0.113 mg / kg to 0.750 mg / kg with an average of 0.376 mg / kg. The selenium content in the corresponding crop rice ranged from 0.023 mg / kg to 0.064 mg / kg with an average of 0.041 mg / kg, the selenium content of aquatic products shrimp and shrimp was 0.217 mg / kg ~ 0.444 mg / kg, the average was 0.291 mg / kg, the tofu skin selenium content was 0.026 mg / kg ~ 0.064 mg / kg, the average was 0.047 mg / kg, selenium content in tea and fruits and vegetables is low. Conclusion The distribution of selenium in farmland soils and major agricultural products in Fuyang is unevenly distributed. According to the local conditions, it is necessary to guide the development of selenium-enriched agricultural products scientifically and rationally, give full play to the resource advantages of Fuyang’s agricultural products, ensure food safety and safeguard consumers’ health.