含有2种以上作物生长所需要的主要营养元素的肥料均可称复合肥料。复合肥料分化学合成和混配两种,前者是生产过程中物料发生化学反应合成的,如磷铵;后者在生产过程中仅仅是物料简单的机械混合,又称复混肥料。复合肥料与复混肥料两个词在美国无明显区别,在中国及欧洲一些国家则把它们加以区别。 Fertilizers containing more than two essential nutrients required for crop growth can be called compound fertilizers. Compound fertilizer chemical synthesis and mixing two kinds, the former is the production process of chemical reaction of the material, such as ammonium phosphate; the latter in the production process is just a simple mechanical mixing of materials, also known as compound fertilizer. Compound fertilizer and compound fertilizer two words in the United States no significant difference in China and some countries in Europe put them to be distinguished.