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一、我省小化肥资源、使用情况1990年,我省榆中氮肥厂、张掖地区化肥厂、金昌化工总厂生产碳铵12.38万吨,金昌化工厂生产氯化铵4.3万吨,白银等磷肥厂生产过磷酸钙20.2万吨。榆中、张掖化肥厂扩产后,年生产碳铵可达20万吨,同时随着联碱工业的发展氯化铵的生产量亦将有所增加。1990年我省使用化肥总量159万吨,其中氮肥109万吨,磷肥26.6万吨,复合肥21.9万吨,氮肥中除使用尿素和硝铵外,使用碳铵11.97万吨,氯化铵4612吨,硫铵5145吨,小化肥占投入使用氮肥总量的12.1％,投入的磷肥除部分磷二铵外,75％为我省白银等地生产的过磷酸钙,由此可见,这批小化肥资源的合理利用大大缓解了我省化
First, the province’s small fertilizer resources, the use of 1990, the province Yuzhong nitrogenous fertilizer plant, Zhangye Prefecture Chemical Fertilizer Plant, Jinchang Chemical Plant production of ammonium bicarbonate 123,800 tons, Jinchang chemical plant production of ammonium chloride 43,000 tons, silver and other phosphate fertilizer Factory production of superphosphate 202,000 tons. Yuzhong, Zhangye Fertilizer Plant expansion, the annual production of ammonium bicarbonate up to 200,000 tons, at the same time with the development of alkali industry ammonium chloride production will also increase. In 1990, the total amount of chemical fertilizer used in our province was 1.59 million tons, of which 1.90 million tons were nitrogen fertilizer, 266,000 tons were phosphate fertilizer and 219,000 tons were compound fertilizer. In addition to using urea and ammonium nitrate, the nitrogen fertilizer used 119,700 tons of ammonium bicarbonate and 4612 ammonium chloride Ton, ammonium sulfate 5145 tons, fertilizer accounted for 12.1% of the total amount of nitrogen fertilizer put into use, in addition to part of phosphate fertilizer in addition to phosphorus diammonium, 75% silver superphosphate production in our province and other places, we can see that these small The rational use of chemical fertilizers greatly ease the province