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无公害蔬菜生产污染主要来自土壤、水质、大气遭受“三废”或重金属等污染,以及蔬菜生产过程中农药、化肥的大量施用、残留与转化。因此,发展无公害蔬菜应注意如下事项:l 无公害蔬菜生产基地的建立。建立稳定的高标准无公害蔬菜生产基地必须以环境监测及有关部门对产品定期检验为保证。基地选择要远离工厂、发电厂和垃圾.处理厂等,并请有关部门定期对田间环境
Pollution of pollution-free vegetables mainly comes from soil, water quality, atmospheric pollution of “three wastes” or heavy metals, as well as the heavy application, residue and transformation of pesticides and fertilizers in vegetable production. Therefore, the development of pollution-free vegetables should note the following: l pollution-free vegetable production base established. The establishment of a stable high-standard pollution-free vegetable production base must be based on environmental monitoring and the relevant departments to regularly test the product as a guarantee. Base to choose away from factories, power plants and trash. Treatment plants, etc., and ask the relevant departments on a regular basis on the field environment