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新中国的磷肥工业是从“第一个五年计划”时期开始发展的。1955年生产出0.1万吨P_2O_5的过磷酸钙,到1989年,县级以上磷肥厂已有591个,实际生产磷肥366.3万吨(P_2O_5,下同),其中有高浓度复肥7.1万吨。目前,我国磷肥生产量仅次于前苏联和美国,居世界第3位。到公元2000年,磷肥生产量约为目前的1倍左右。本文对我国高浓度复合肥的发展作一简要论述。
New China’s phosphate fertilizer industry started from the “first five-year plan” period. In 1955, the company produced 0.1 million tons of P2O5 superphosphate. By 1989, there were 591 phosphate plants above the county level, with an actual production of 3.663 million tons of phosphate fertilizer (P2O5, the same below), of which 71,000 tons were high-concentration compound fertilizers. At present, China’s phosphate fertilizer production is second only to the former Soviet Union and the United States, ranking third in the world. By the year 2000, the production of phosphate fertilizer is about 1 times the current level. This article gives a brief exposition of the development of high concentration compound fertilizer in our country.