basic slag

American  

noun

Metallurgy.

1. slag formed by the basic process of steelmaking, used as a furnace or converter lining or as a fertilizer.

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basic slag British  

noun

1. a furnace slag produced in steel-making, containing large amounts of calcium phosphate: used as a fertilizer

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Etymology

Origin of basic slag

First recorded in 1885–90

Example Sentences

Manuring with basic slag at the rate of from 5 to 10 cwt. per acre has been found to give excellent results on poor clays and peaty soils.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" by Various

Quite recently, also, a large source of phosphoric acid has been opened up in the basic slag, a rich phosphatic bye-product obtained in considerable quantity in steel-works from the basic process of steel manufacture.

From Manures and the principles of manuring by Aikman, Charles Morton

Nitrate of soda must not be mixed with superphosphate, but it may be added to basic slag and the potash manures.

From The Culture of Vegetables and Flowers From Seeds and Roots 16th Edition by Sutton and Sons

Slow-acting manures are consequently best, such as basic slag or bones, which have been found to be of special value.

From Manures and the principles of manuring by Aikman, Charles Morton

The amount of effective lime in basic slag, as made by modern methods, is so small that its value is nearly negligible.

From Right Use of Lime in Soil Improvement by Agee, Alva