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所谓无公害蔬菜是指蔬菜中农药残留、重金属、亚硝酸盐等有害物质的含量,控制在国家规定的允许范围内,人们食用后对人体健康不会造成危害的蔬菜。随着社会的进步和经济的发展,蔬菜的营养和安全卫生问题越来越突出,因其生长速度快,生长期较短,可食用部分比例高,与人类日常生活关系更为密切,受污染后对人体影响较大而倍受重视。科学施用肥料对提高蔬菜产量,保证蔬菜质量安全,具有重要作用。
The so-called pollution-free vegetables refers to vegetables in pesticide residues, heavy metals, nitrite and other harmful substances in the content, control the allowable range of the provisions of the state, people do not cause harm to human health after eating vegetables. With the progress of society and economic development, the nutrition and safety and health problems of vegetables are becoming more and more prominent. Due to its rapid growth, short growth period, high proportion of edible parts, its close relationship with human daily life and pollution After the greater impact on the human body and much attention. Scientific application of fertilizers to improve vegetable yield, ensure vegetable quality and safety, has an important role.