１无公害蔬菜生产的施肥技术１．１无公害蔬菜生产的施肥原则。无公害蔬菜生产要掌握以有机肥为主，其他肥料为辅；以多元复合肥为主，单元素肥料为辅；以施底肥为主，追肥为辅的施肥原则。尽量减少和限制化肥的施用量，确实需要时，可以有限度、有选择地施用部分化肥。在使用 A pollution-free vegetable production technology fertilization 1.1 pollution-free vegetable production fertilization principles. Pollution-free vegetables to master the production of organic fertilizer, supplemented by other fertilizers; to multi-compound fertilizer, supplemented by a single element of fertilizer; to base fertilizer, supplemented by top dressing fertilization principles. Try to reduce and limit the amount of chemical fertilizer, if necessary, can be limited, selective application of some fertilizers. In use