The optimum process conditions of preparing full water-soluble high concentration NPK compound fertilizer was studied. The change of product nutrient yield with the ratio of reaction materials was tested.

• 摘要以尿素、磷酸和氯化钾为原料，对含氮、磷、钾三元素全水溶性高浓度复合肥料制备工艺的最佳工艺条件进行了研究，并对最佳工艺条件下产物养分收率随反应物物料配比的变化情况进行了考察。