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

In a natural state it is obtained from bones, guano and wood ashes; and in an artificial condition from basic slag or Thomas’s phosphate, coprolites and superphosphate of lime.

From Project Gutenberg

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 Project Gutenberg

If basic slag and kainit are given, autumn is the time, as their action is slow.

From Project Gutenberg

This is the case, indeed, with many artificial manures, such as guano, bones, nitrate of soda, and basic slag.

From Project Gutenberg

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

From Project Gutenberg