Slag formed as a by-product of basic steel-making processes. It is generally rich in lime and sometimes also in phosphates, and can be used as fertilizer.
碱性（炉）渣
Example sentencesExamples
As a result, the amount of phosphorus in samples of basic slag today is very low.
In magnesium-deficient soils, add fish meal, basic slag, greensand or dolomitic limestone.
Usually, a charge of graded steel scrap is melted under an oxidising basic slag to remove the phosphorus.
Amongst these were agricultural fertilizers such as basic slag and essential components of products such as washing powders.
Rock phosphate, colloidal phosphate, and basic slag are only slightly water soluble and become available to plants slowly.