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利用冶金工厂的副产品——炉渣生产肥料,不仅可以降低钢铁的成本、改善冶金工厂的环境卫生,而且为农业增产提供了可靠的物质基础。炉渣中约含有40％的钙,所以特别适用于酸性土壤,它可以降低土壤的酸度。此外,它还含有一定数量的磷、镁、铜、锰等(为植物所必需的营养物质),因此它就成了一种很好的肥料。苏联乌拉尔农业科学研究所,在中乌拉尔(酸性灰壤地区)用炉渣作试验,取得了良好的效果;在施过炉渣肥料的地里,小麦、黑麦、马铃薯、甘蓝和甜菜的产量比一般增加了50％。然而,利用炉渣肥田必须把它研磨成粉末才能奏
The use of slag as a byproduct of the metallurgical plant to produce fertilizer can not only reduce the cost of steel, improve the environmental health of metallurgical plants, but also provide a reliable material basis for agricultural production. The slag contains about 40% calcium, so it is particularly suitable for acidic soils, it can reduce the acidity of the soil. In addition, it also contains a certain amount of phosphorus, magnesium, copper, manganese, etc. (it is a necessary nutrient for plants), so it has become a very good fertilizer. The Ural Institute of Agricultural Sciences in the Soviet Union used slag as a test in the Central Ural (acidic grey earth area) and achieved good results; in the slag-fertilizer-treated plots, wheat, rye, potatoes, cabbage, and sugar beet yielded more than usual. Increased by 50%. However, using slag fertilizer, it must be ground into powder before it can be played.