“single superphosphate”的概念、定义、翻译、参考文献-科学参考

单词	single superphosphate
释义	single superphosphate Encyclopedia 工学湿法磷肥释 single superphosphate过磷酸钙用硫酸分解磷矿直接制得的磷肥。又称普通过磷酸钙，简称普钙。主要有用组分是磷酸二氢钙的水合物[Ca(H2PO4)2·H2O]和少量游离的磷酸，还含有无水硫酸钙组分（对缺硫土壤有用）。过磷酸钙含有效五氧化二磷为14%～20%（其中80%～95%溶于水），属于水溶性速效磷肥，灰色或灰白色粉料或颗粒料（由粉料造粒制成），可直接作磷肥，也可作制复合肥料的配料。
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