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作 者:侯晶[1] 陈振楼[1] 姚春霞[1] 陆利民[2] 蔡贞[2]
机构地区:[1]华东师范大学资源与环境学院,上海200062 [2]上海市浦东新区农业技术推广中心,上海201201
出 处:《华南农业大学学报》2006年第2期17-19,共3页Journal of South China Agricultural University
基 金:国家自然科学基金(40131020);上海市基础研究重点项目(05JC14059);上海市科技兴农攻关项目(48040220);"十五"上海市重大科技攻关项目(05DZ12007)
摘 要:对上海市浦东农业区蔬菜样品进行硝酸盐含量测定.结果表明:不同种类蔬菜硝酸盐含量高低依次为叶菜类、瓜类、豆类、茄果类,大棚蔬菜硝酸盐含量明显高于大田.对蔬菜硝酸盐含量评价结果表明:大棚部分叶菜类蔬菜硝酸盐污染严重;杭白菜、空心菜、毛菜、苋菜与青菜已达三级污染水平,其中毛菜三级污染指数达1.28.蔬菜亚硝酸盐含量大小为叶菜类>豆类>茄果类>瓜类,其中生菜、毛菜、扁豆、空心菜和苋菜超标,占样品总数的13.9%.Both nitrate and nitrite contents of vegetable samples from the agricultural area in Pudong, Shanghai ,were measured. The results showed that the nitrate content in the vegetable samples decreased orderly as leaf vegetables, melons, beans and eggplants, and the nitrate content of vegetables cultivated in the greenhouse was much higher than that of vegetables of open field. Some leaf vegetables of greenhouse were seriously polluted by the nitrate ,the nitrate-induced pollution in Chinese cabbage, swamp morningglory, chicken's feather veggie, amaranth, and greengrocery reached the third grade level, and specially the nitrate-induced pollution index of chicken's feather veggie was 1.28. The nitrite content in vegetable samples was in order of leaf vegetables 〉 legumes 〉 eggplants 〉 melons, and the nitrite content of lettuce, chicken's feather veggie, haricot bean, swamp morningglory and amaranth, which accounted for 13.9% of the total vegetables, exceeded the pollution standard.
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