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富磷酸钢渣是一种很好的磷肥其中不仅磷能促进植物初期的根部发育和提早后期的成长;而且SiO_2、Mg、Mn亦能对植物有不同的肥效。此外由于其中还含有多量氧化钙,用于缺乏石灰质的土壤更为有效。一般认为钢渣磷肥肥效不亚于甚至高于过磷钙酸。钢渣磷肥不仅肥效大,而且因其不需要什么专门的制造设备和费用,只需把这种钢渣加磨碎即可使用,因此其生产成本远较过磷酸钙等矿质肥料低。在欧州国家托马斯钢渣是磷肥的主要来源之一。我国土壤缺磷的很多,其中特别是南方。据有关方
Phosphate-rich steel slag is a good phosphate fertilizer, of which not only phosphorus can promote the early root development and early growth of plants; and SiO 2, Mg and Mn can also have different fertilizer effects on plants. In addition, because it also contains a large amount of calcium oxide, for the lack of calcareous soil more effective. It is generally believed that steel slag phosphate fertilizer efficiency is no less than or even higher than that of phosphotungstic acid. Steel slag phosphate fertilizer is not only effective, but also because it does not require any special manufacturing equipment and costs, simply add this steel slag can be used, so its production costs far lower than superphosphate and other mineral fertilizers. In European countries, Thomas Steel Slag is one of the main sources of phosphate fertilizer. Lack of phosphorus in our soil a lot, especially in the South. According to the parties concerned