用硫酸分解磷灰石製得的稱爲普通過磷酸鈣gài，簡稱普鈣gài，主要成分爲一水磷酸二氫qīng、無水硫酸suān鈣和少量磷酸，含有效xiào 磷lín14% ～ 20% ，其中zhōng80%～95%溶於水shuǐ，屬水溶性速效磷肥féi，可直接作磷肥féi，也可用於制複合肥料liào。 普鈣是全元素綠色肥料liào，是世界上最早生產的一種磷肥féi，也是我國應用比較普遍的一種磷肥féi，爲植物提供磷lín、硫liú、鈣gài、鎂等多種元素sù，具有改良鹼性土壤的作用yòng，能促進植物的發芽yá、長根gēn、分枝zhī、結實及成熟shú，可用作生產復混肥的原料liào

Ordinary superphosphate is made by decomposing apatite with sulfuric acid, which is called common superphosphate. Its main components are dihydrogen phosphate monohydrate, anhydrous calcium sulfate and a small amount of phosphoric acid. It contains 14%~20% available phosphorus. Among them, 80%~95% are soluble in water. It is a water-soluble and quick-acting phosphate fertilizer. It can be directly used as phosphorus fertilizer and can also be used to make compound fertilizer. Pure calcium is a kind of green fertilizer with all elements. It is the earliest phosphorus fertilizer produced in the world. It is also a kind of phosphorus fertilizer widely used in China. It provides plants with phosphorus, sulfur, calcium, magnesium and other elements. It can improve alkaline soil, promote plant germination, long roots, branching, fruiting and maturity, and can be used as a production compound. Fertilizer raw materials.