介绍以磷酸氢钙为磷源的颗粒复混肥的造粒及产品特性，讨论了水分对颗粒抗压强度的影响，并测定了不同温度下产品中Ｐ２Ｏ５的退化率，以确定产品的稳定性 The granulation and product characteristics of granular compound fertilizer containing calcium hydrogen phosphate as phosphorus source were introduced. The effect of moisture on the compressive strength of granule was discussed. The degradation rate of P2O5 in different temperature was also measured to determine the stability of the product