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炼铜的鼓风炉渣或反射炉渣,一般都含有大量的SiO_1、CaO 以及铜、锌、钴等元素,这些成分大部分是谷物生长所需要不断补充的养分。朝鲜某冶炼厂与朝鲜农业科学院,近几年来对于利用炼铜鼓风炉渣作肥料进行了系统的研究。他们曾经直接将炉渣磨细送农业生产部门试验与使用,发现对农作物有一定增产效果。为进一步提高炉渣的肥效,他们又配入一部分磷灰石,造成一种合磷的炉渣
Copper smelting blast furnace slag or slag, generally contain a lot of SiO_1, CaO and copper, zinc, cobalt and other elements, most of these ingredients are required for the growth of grain nutrients continue to be added. A Korean smelter and the North Korean Academy of Agricultural Sciences in recent years for the use of copper blast furnace slag as a fertilizer for a systematic study. They used to grind the slag directly to the agricultural production sector for testing and use and found that they had a certain yield increase effect on the crops. In order to further improve the fertilizer efficiency, they are also part of the apatite, resulting in a phosphorus slag