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论述了近年国内外生产和施用的氮肥中所含铵态氮和硝态氮的比例关系。硝态氮肥产量占全球氮肥总产量:世界约14%,欧盟约40%,而我国仅占2%。消费结构比例与产量比例相近。世界最大3家氮肥生产商Yara、Terra和PCS的主要产品为硝铵尿素溶液、硝酸盐等含硝态氮产品,产量和销售量占其氮肥总量的50%以上。加快发展我国硝基肥产业,提高硝态氮肥施用量,对优化我国施肥结构、提高肥料利用率有重要意义。
The proportion relationship between ammonium nitrogen and nitrate nitrogen in nitrogen fertilizer produced and applied at home and abroad in recent years is discussed. The production of nitrate nitrogen fertilizer accounts for the total output of nitrogenous fertilizer in the world: about 14% in the world, about 40% in the EU and only 2% in our country. The proportion of consumption structure and output are similar. The main products of Yara, Terra and PCS, the three largest nitrogenous fertilizers in the world, are ammonium nitrate nitrogen solution, nitrate and other nitrate nitrogen products, accounting for more than 50% of the total nitrogenous fertilizer production and sales. To speed up the development of China’s nitrification and fertilizer industry and improve the application of nitrate nitrogen fertilizer, to optimize China’s fertilizer structure, improve fertilizer utilization rate is of great significance.