“尿素浓溶液制氮磷钾复合肥料生产技术”与“尿素熔融体制氮磷钾复合肥料生产技术”是由上海市化工研究院(邮码:200062)新近开发研制的两项新技术,它在我国氮磷钾复合肥料行业中 “Production technology of nitrogen, phosphorus and potassium compound fertilizer with concentrated urea solution” and “Production technology of nitrogen, phosphorus and potassium compound fertilizer with urea melting system” are two newly developed and newly developed technologies by Shanghai Research Institute of Chemical Industry (code: 200062) China’s NPK compound fertilizer industry