芹菜、菠菜、莴苣、小白菜、大白菜等蔬菜施用硝态氮肥后,易大量积累硝酸盐,这种盐类对人体健康十分不利,长期食用这些蔬菜会引起累积性中毒,造成严重后果,故应严禁使用硝态氮肥。甘蓝类虽积累硝酸盐少,但最好也不使用硝态氮肥。对硝酸盐积累较轻的果菜类(番茄、茄子、辣椒、萝卜、胡 Celery, spinach, lettuce, Chinese cabbage, Chinese cabbage and other vegetables after the application of nitrate nitrogen fertilizer, easy to accumulate nitrate, this salt is very unfavorable to human health, long-term consumption of these vegetables can cause cumulative poisoning, causing serious consequences, so Nitrogenous nitrogen fertilizer should be strictly prohibited. Although less accumulation of nitrate cabbage, but it is best not to use nitrate nitrogen. On the nitrate accumulation of light fruits and vegetables (tomatoes, eggplant, peppers, radishes, Hu