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介绍用尿素、钾盐、水配制成熔融料浆，以磷矿粉预中和处理过磷酸钙制得过磷酸钙粉料，进行喷浆造粒生产颗粒复混肥的方法。
Introduced with urea, potassium salt, water preparation of molten slurries to phosphate rock pre-neutralization treatment of superphosphate calcium superphosphate powder, spray granulation method for the production of particle compound fertilizer.