“无公害蔬菜”也叫无化肥农药污染蔬菜。这类蔬菜无污染,不含有毒物质,有利人体健康。总结国内外蔬菜生产经验,生产“无公害蔬菜”,应掌握如下施肥技术。1.重施有机肥料　有机肥料来源广,成本低,养分全面,易积易制,不但能改善土壤物理性质,而且能为蔬菜生长提供全量营养元素,又不会污染蔬菜。以有机肥料生产的蔬菜,耐贮存,菜质好。菜用有机肥料需经无害处理,提倡施用沼气池肥料。 “Pollution-free vegetables” also called fertilizer-free pesticide-contaminated vegetables. Such vegetables are non-polluting, non-toxic substances, beneficial to human health. Summarize vegetable production experience at home and abroad, production of “pollution-free vegetables”, should master the following fertilization techniques. 1. re-apply organic fertilizer Wide source of organic fertilizer, low cost, comprehensive nutrients, easy to plot system, not only to improve soil physical properties, but also for the growth of vegetables to provide the full amount of nutrients, but also does not contaminate vegetables. Vegetables produced with organic fertilizers are resistant to storage and good in quality. Vegetable organic fertilizer subject to harmless treatment, advocate the use of biogas fertilizer.