发明申请
US20120017659A1 FERTILIZERS CONTAINING ANIMAL NUTRIENT CORE PACKET 审中-公开
含有动物营养核心包的肥料

FERTILIZERS CONTAINING ANIMAL NUTRIENT CORE PACKET
摘要:
A fertilizer supplying animal nutrients including a core particle having an outer surface and comprising compounds containing animal nutrients, and a coating of urea on the outer surface of the core particle, and further a process of making the fertilizer including the steps of: screening animal nutrient core particles comprising a powdered substance containing an animal nutrient, to a preselected particle size; spraying melted urea onto the surface of the nutrient core particles to produce a coating on the nutrient core particles; granulating the nutrient core particles with sprayed melted urea to produce nutrient core granules; and cooling the nutrient core granules.
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