The direct blending of urea and coated PK granules prohibits the problems in the production of compound fertilizer based on ureaSSP, with lower N loss, easier sale and more economy.

• 采用尿素与包裹后的磷钾粒肥直接掺混,避免和解决了尿素过磷酸钙系复混肥生产中存在的一系列问题,减少了氮素的损失,提高了产品的市场销售属性,增大了企业经济效益。