摘要
鉴于摄入高量硝酸盐可能给人体带来潜在的致癌危险,本研究首次对上海地区蔬菜硝酸盐含量作调查,并参照FAO/WHO规定进行食用卫生分级评价。田间和盆栽试验结果表明:氮肥用量是影响蔬菜NO_2^-含量的决定因素,与氮肥品种无关;喷施微量元素和应用硝化抑制剂均有降低NO_3^-含量的作用;施有机肥料对蔬菜NO_3^-积累影响不大。
On the basis of recent epidemiological evidence, high nitrate intake may cause human gastric cancer. Taking account of the possible risk of high nitrate intake, nitrate contents in various vegetables were tested. According to the maximum acceptable daily intake of nitrate set by FAO/WHO, the food sanitation of nitrate content in vegetables was assessed.The results of field and pot experiments showed that amount of nitrogen fertilizer applied was an important factor of nitrate accumulation in vegetables; there was no significant difference in nitrate accumulation in vegetable between treatments with different kinds of nitrogen fertilizer; spraying microelement and applying nitrification inhibitor would decrease nitrate content in vegetables; and applying manure could'nt cause more nitrate accumulation in vegetables.
出处
《上海农业学报》
CSCD
1990年第4期59-66,共8页
Acta Agriculturae Shanghai
关键词
蔬菜
硝酸盐
残留
控制
食用卫生
Vegetable
Nitrate content
Food sanitation standard
Agricultural measures
