一、来源世界上最早施用的磷肥是用兽骨作为原料生产的。自从1818年发现磷矿以后,大规模工业生产磷肥主要原料是磷矿石。1908年俄国农业化学家普杨尼什尼柯夫和化学家布利茨盖首先提出用硝酸分解天然磷矿制造 First, the source of the world’s first application of phosphate fertilizer is the use of animal bones as raw material. Since the discovery of phosphate rock in 1818, the major raw material for large-scale industrial production of phosphate fertilizer is phosphate rock. In 1908, Russian agricultural chemist Puyangyishnikov and chemist Blitzkrieg first proposed to use nitric acid to decompose natural phosphate rock