磷矿粉是一种由含磷的岩矿所磨成的粉末,它在农业上的主要用途有二,一为直接用作肥料,二为用作禽畜的飼料。目前世界上所开采的含磷岩矿,直接以磷矿粉形式用作肥料的不到10％,其余則經过工业加工后,制造成各种磷化合物和不同純度的含磷制品,其中絕大部分,仍旧用作肥料。最早以磷矿粉直接作为肥料施用的是法国,那是十九世紀初叶的事。但由于受到当时 Phosphate rock is a powder ground by phosphorus-bearing rocks. It has two main uses in agriculture, one for direct use as fertilizer and the other for livestock feed. At present, less than 10% of the phosphate rock mined in the world is used as a fertilizer directly in the form of phosphate rock powder, and the rest is processed into various phosphorus compounds and phosphorus-containing products of different purities through industrial processing. Mostly, still used as fertilizer. The earliest application of phosphate rock as fertilizer was in France, which was the beginning of the nineteenth century. But because of the time