从理论上分析专用复混肥的配方原理，探讨肥料造粒工艺与肥效间的关系，提出肥料施用量的确定方法。指出优良的专用肥配方必须考虑不同作物对养分的不同需求、不同土壤类型中养分含量的差异、不同养分在不同土壤中的转化过程、养分间的相互作用、不同单质肥料品种对作物的影响、某种作物对某种养分的特殊需求以及单质肥料间的化学兼容性等因素。 The principle of recipe for special compound fertilizer is theoretically analyzed, the relationship between fertilizer granulation process and fertilizer efficiency is discussed, and the method for determining the amount of fertilizer application is put forward. It is pointed out that good special fertilizer formula must consider the different needs of different crops for nutrients, the differences of nutrient contents in different soil types, the conversion process of different nutrients in different soils, the interactions among nutrients, the effects of different single- The specific needs of a crop for a nutrient and the chemical compatibility of the elemental fertilizers and other factors.