野生蔬菜与无公害蔬菜的生产北京农业大学朱立新随着人们健康意识的提高，对蔬菜生产的质量要求也越来越高，无公害蔬菜也就应运而生。由于栽培蔬菜长期进行人工选择、保护栽培，使其抗病性，抗逆性大大减弱，农药的使用种类越来越多，量也越来越大。另外，城市居民吃菜多... The production of wild vegetables and pollution-free vegetables Beijing Agricultural University Zhu Lixin With the improvement of people’s health awareness, the quality requirements of vegetable production is also getting higher and higher, pollution-free vegetables also came into being. As long-term artificial selection of cultivated vegetables, conservation, so that its disease resistance, resistance greatly reduced, more and more use of pesticides, the amount is also growing. In addition, urban residents eat more vegetables ...