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复合肥料的种类有非粒状复合肥料、粒状均匀复合肥料、颗粒掺混肥料、流体复合肥料等。其生产模式主要有以下几种:(1)大型化工联合企业直接从基础肥料制造,到通过化学反应制成肥料复合物的料浆造粒型、养分均匀的复合肥料;(2)用购入的基础肥料配料,造粒制成的养分均匀的复合肥料;(3)用购入的颗粒状基础肥料,配料混合而得到的养分不大均匀的掺混型复合肥料;(4)由购入的含氮、含氮-磷的基础液体肥料,加入磷酸铵、钾盐等配制的多种液体复合肥料。因为世界上不同地区气候、土壤、作物、国家工业化过程的不同,复合肥料的发展情况在各国也不尽相同。在一个国家里,不同的年代也有所不同。美国近百年使用复合肥料,经历了多种类型复合肥料生
The types of compound fertilizers include non-granular compound fertilizers, granular uniform compound fertilizers, granulated compound fertilizers and fluid compound fertilizers. The main modes of production include the following: (1) large-scale chemical complex directly from the basic fertilizer manufacturing to fertilizer compound by chemical reaction slurry granulation, nutrient-rich compound fertilizer; (2) with the purchase Of the basic fertilizer ingredients, granulation made of uniform nutrient compound fertilizer; (3) with the purchase of granular basic fertilizer, the ingredients are mixed to obtain a mixed nutrient fertilizer is not uniform; (4) from the purchase Of the nitrogen, nitrogen-phosphorus-based liquid fertilizer, adding ammonium phosphate, potassium and other formulated liquid composite fertilizer. Due to the different climate, soil, crop and national industrialization in different regions of the world, the development of compound fertilizers also varies in different countries. In a country, different ages are different. The United States has used compound fertilizers for nearly a hundred years and has experienced various types of compound fertilizers