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在化肥中,氮肥占有重要地位。不论从全世界来看,也不论从我国来看,化肥增长的部分主要是氮肥。1961年,我国氮肥用量仅约占全世界氮肥总用量的5％,而1980年用量已上升至20％。1996年以后,氮肥用量已达到或超过2500万吨,占化肥总用量的60％以上,占全球氮肥用量的30％,是世界上生产和消费氮肥最多的国家。
In fertilizer, nitrogen occupies an important position. No matter from a global perspective, or from our point of view, the main part of fertilizer growth is nitrogenous fertilizer. In 1961, the amount of nitrogenous fertilizer in our country accounted for only about 5% of the total amount of nitrogenous fertilizer in the world, while the amount in 1980 had risen to 20%. Since 1996, the nitrogenous fertilizer consumption has reached or exceeded 25 million tons, accounting for more than 60% of the total amount of chemical fertilizers and accounting for 30% of the global nitrogen fertilizer consumption. It is the country that produces and consumes the most nitrogenous fertilizer in the world.