液氨是合成氨(NH_3)在一定的压力下液化而成。又叫无水氨或纯氨。其含氨量高达82.3％,是尿素的1.8倍,碳铵的4.9倍,硝铵的2.4倍。 液氨直接用于施肥的技术已有四十余年的历史。在美国农业总用N量的38％依赖于液氨,占所有N化肥品种的首位。加拿大、墨西哥、丹麦、荷兰、英、法和苏联等国液氨施用量也占较大的比例。近年来我国北 Liquid ammonia is ammonia (NH_3) liquefied under a certain pressure. Also known as anhydrous ammonia or pure ammonia. The ammonia content of up to 82.3%, 1.8 times that of urea, ammonium bicarbonate 4.9 times, ammonium nitrate 2.4 times. Liquid ammonia has been used directly in fertilization technology for more than 40 years. In the United States, 38% of the total agricultural N depends on liquid ammonia, accounting for the top of all N-fertilizer varieties. Canada, Mexico, Denmark, the Netherlands, Britain, France and the Soviet Union and other countries also accounted for a larger proportion of liquid ammonia. In recent years, our country north