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化肥是重要的支农产品,近年来我国对化肥工业的发展非常重视。1991年化肥实物产量为1975万吨,居世界第二,仅次于美国,其中氮肥为1510万吨,居世界第一;磷肥为456万吨,居世界第二;钾肥为10万吨,数量较少。目前,我国共有化肥厂2000个左右,其中大多数为小型厂。化肥品种有氮肥、磷肥、钾肥、复混肥、微量元素肥料和腐植酸类肥料等6大类20多个品种,1998年我国化肥总产量已达到2736.62万吨,其中氮肥2192.5万吨,磷肥515.6万吨,钾
Fertilizer is an important agricultural product. In recent years, China has attached great importance to the development of the chemical fertilizer industry. In 1991, the physical output of chemical fertilizers was 19.75 million tons, ranking second in the world, second only to the United States. Nitrogen fertilizer was 15.1 million tons, ranking the first in the world; phosphate fertilizer was 4.56 million tons, ranking second in the world; potassium fertilizer was 100,000 tons. less. At present, China has about 2,000 chemical fertilizer plants, most of which are small plants. Fertilizer varieties include nitrogen fertilizers, phosphate fertilizers, potash fertilizers, compound fertilizers, trace element fertilizers, and humic acid fertilizers. There are more than 20 varieties in 6 categories. In 1998, the total output of chemical fertilizers in China reached 27,362,200 tons, including 21.925 million tons of nitrogen fertilizer, and phosphate fertilizer 515.6. Ten thousand tons, potassium