近年来,我国氮肥行业整体水平得到大幅提升,产能、产量快速发展,已经成为世界最大的合成氨、尿素生产国。截至2012年底,全国合成氨产能达到6850万吨/年,尿素产能达到7148万吨/年。预计到2015年,全国合成氨产能将达到8350万吨/年,占全球总产能的37%;尿素产能达到9500万吨/年,占全球总产 In recent years, the overall level of China’s nitrogen fertilizer industry has been greatly improved, rapid development of production capacity, output, has become the world’s largest producer of ammonia, urea. As of the end of 2012, the national ammonia production capacity reached 68.5 million tons / year, urea production capacity reached 71.48 million tons / year. It is estimated that by 2015, the national ammonia production capacity will reach 83.5 million tons / year, accounting for 37% of the global total capacity; urea production capacity will reach 95 million tons / year, accounting for the global output