【作者】 苏帆； 付利波； 陈华； 洪丽芳；

【Author】 Su Fan;Hong Lifang;Fu Libo;Chen Hua;Soil and Fertilizer Institute, Yunnan Academy of Agricultural Sciences;

【机构】 云南省农科院土肥所；

【摘要】 通过对蔬菜施用有机肥和化肥处理的实验表明,在无公害蔬菜生产过程中,施用有机肥能有效的控制蔬菜中硝酸盐的含量;化学氮肥对蔬菜中硝酸盐的累积影响很大。由于磷肥中含有相当数量的重金属,大量施用会对蔬菜中重金属的含量造成一定的影响。化肥+有机肥处理有效养分较高,生菜产量高,扣除成本后仍有很高的产值。因此,在大田生产过程中,除了合理施用一定配比的氮、磷、钾化学肥料外,还提倡施用足量有机肥。更多还原

【Abstract】 In the production of non-contaminated vegetables, application of organic manure could effectively control nitrate content of vegetables, but chemical nitrogen fertilizer greatly increased nitrate content. Application of large amount of phosphorus fertilizer influenced heavy metal content in vegetables due to corresponding heavy metal concentration in phosphorus fertilizer. Combined application of chemical and organic fertilizer produce high yield of lettuce and benefit because of high available nutrients. Therefore, in field vegetable production sufficient organic manure was recommended in addition to the application of rational ratio of N, P and K chemical fertilizers.更多还原