长期以来中国化肥工业生产氮磷钾比例失调,目前政府以增加国内复合肥和磷肥产量,特别是高浓度产品如一铵、二铵来解决这一问题。如果依赖国产低质量磷矿生产磷肥来解决比例失调难以有重大突破。因为中国所直接用于生产高浓度磷肥的磷矿只占磷矿总贮量的7％,这种高品位矿床集中在中国西南部。 For a long time, China’s fertilizer industry has produced imbalances in the ratio of NPK, and the government is currently solving this problem by increasing domestic production of compound fertilizers and phosphate fertilizers, especially high-concentration products such as monoammonium and diammonium. If you rely on domestic low-quality phosphate rock phosphate fertilizer production to solve the imbalance of the ratio is difficult to have a major breakthrough. Because China’s direct use of high-concentration phosphate fertilizers accounts for only 7% of the total phosphate reserves, this high grade deposit is concentrated in southwestern China.