提高农产品品质与减少硝酸盐污染的施肥技术研究

Studies on the techniques of promoting the quality of agricultural products and reducing the pollution of nitrate by applying fertilizers.

6年试验研究结果表明,农业生产采用N、P、K平衡施肥,增施优质微生物肥料,微生物肥与无机肥、有机肥配施,适当减少化肥用量等施肥技术均提高作物产量和产值,尤其对改善农产品品质、减少硝酸盐污染效果明显,增施微生物肥和有机肥,减少N素化肥用量10％、50％,蔬菜可食部硝酸盐降低17.04％～24.86％。

The results of six years researches show that the output and productive value of crops in the process of agricultural production are all promoted, especially the quality of agricultural products is improved and the pollution of nitrate is reduced, by applying balanced fertilizers of N, P and K fertilizer, adding useness of the good quality microfertilizers, com-binating the microfertilizer, organic fertilizer and inorganic fertilizer, and reducing the amount of chemical fertilizer. Adding useness of microfertilizer and organic fertilizer can reduce the using amount of chemical fertilizers by 10% and 50% respectively, in addition, the nitrate in the edible parts of vegetables can be reduced by 17.04% -24. 86% .