Several other materials can be used for liming purposes, such as, baked or burned oyster shells, marl, basic slag, wood ashes, and cement industry by-products.

• 其它几种物质也可用来施用石灰，如?壳灰、泥灰、钢渣磷肥（碱性炉渣）、草木灰和工业水泥的副产品等。