我国需增加硝基肥产量,提升硝态氮施肥比例

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。

Developing nitrate fertilizer production and increasing nitrate nitrogen ratio

The ratios are discussed between nitrate and ammonium nitrogen in nitrogen fertilizers produced and applied in recent years. For production or consumption the nitrate nitrogen-containing fertilizer proportions as a total nitrogen fertilizer are about 10% in the world, 40% in EU, and 2% in China respectively. More than half amounts of nitrogen fertilizers are produced or sold for nitrate nitrogen-containing fertilizers of ammonium nitrate-urea solution and nitrate fertilizers in the globle three largest nitrogen fertilizer manufacturers Yara, Terra and PCS respectively. Developing nitrate nitrogen-containing fertilizer and increasing its fertilization quantity are very significant to optimize fertilization structure and improve fertilizer efficiency in China.