properties of steel slag. Contamination of agricultural crops by toxic heavy metals (HMs) causes serious damage to the human body. A consecutive early rice-late rice rotation experiment was conducted to test the impacts of steel slag on soil pH, silicon availability, rice growth and metals-immobilization in paddy soil. Several IRC materials have traditionally been used in agriculture as a substitute for limestone. (28) Chow is used in the production of steel from lime, so slag has a (PH) mucilage. The use of metallurgical solid wastes such as steel slag, in agricultural activity, has become very important to contribute to reducing the accumulation of such wastes in the environment and to increase crop production. Slag-based silicate fertilizer has been widely used to improve soil silicon- availability and crop productivity. Quicklime is the most commonly used lime; the followings are the advantages of quicklime over hydrated lime (Rogers et al, 1996). The most common Si fertilizers used are industrial byproducts (e.g., blast furnace slag, steel slag, ferromanganous slag, Ca slag). There were 29 slag-processing companies servicing iron and/or steel companies or reprocessing old slag piles at about 130 locations iron slag at about 40 sites in 14 States and steel slag at about 90 sites in 32 States. Blast furnace slag (BFS) and steel furnace slag (SFS) have a long history of being utilized as industrial byproducts, going back almost 100 years in the United States. and steel slag, valued at about 326 million (f.o.b.) Steel Slag Production In. Steel slag can be considered a mineral amendment used to improve soil acidity, and also a source of calcium and magnesium. Biochar is a rich source of carbon, and the combined application of biochar and steel slag is assumed to have positive impacts on soil prop … Steel slag offers considerable cost advantages over commercial limestone and has been successfully utilized as a substitute for limestone to neutralize soil acidity in agricultural soils in several countries. [] and Manso et al. In agriculture, slag aggregates (Ag-Slag) have been used as an agricultural liming material since the 1920's in all types of crop production and landscaping. BFS is composed of the non-metallic components removed from iron ore during processing in a blast furnace. The most common Si fertilizers used are industrial byproducts (e.g., blast furnace slag, steel slag, ferromanganous slag, Ca slag). Slag used on soils that were boron deficient produced better yields than did limestone without borax." In Indiana, the steelmaking industries and power plants generate large quantities of steel slag, blast furnace slag and fly ash every year. This means that about 40 million tons of slag, the so-called iron and steel slag, is produced annually in Ja- The materials are used to maximise yields of cultivated crops and pasture, improve soil texture and neutralize high soil acidity. On the other hand, investigations [71, 72] using steel mill slag to produce guava seedlings found that besides the corrective action of pH, the rise in the sum values base saturation, the waste proved to be a source of micronutrients such as zinc, copper, manganese, and boron. Its pH-raising effect is similar to that of ground limestone. Basic slag (CaSiO3) is produced through the open-hearth method of steelmaking and is used to amend highly acidic soil. Neutralization Potential very high (ANP = 114%) reported to the content of calcium oxide and magnesium oxide. 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