减少蔬菜体内硝酸盐污染的施肥技术

Study on Reducing the Pollution of Nitrate in Vegtable by Applying Fertilizers

两项田间定位试验结果表明,蔬菜生产上,适当减少化肥用量、增施优质微生物菌肥、微生物菌肥与化肥和有机肥配施等施肥技术均提高蔬菜产量和产值,尤其对降低硝酸盐含量效果明显。增施微生物肥和有机肥,减少氮素化肥用量12%,蔬菜硝酸盐含量降低15.99%～34.70%。

The results of two fized position researches show that the output and productive value of vegetable are all promoted.especially the quality of agricultural products if improved and the pollution of nitrate is reduced by adding the good quality microfertilizers,combinating the microfertilizer.organic fertilizer and inorganic fertilizer,and reducing the amount of chemical fertilizer. Aiding microfertilizer and organic ferilizer can reduce the using amount of chemical fertilizers by 12% respectively and the filtrate in vegetables can be reduced bv 15.99%-34.70%.