Bone china porcelain is basically made by adding bone ash (burned animal bones) to kaolin and petuntse.

骨瓷基本成分是加入骨粉（动物骨头燃烧后粉末）高岭土和白墩子。

So I bought a bag of superphosphate bone meal from a flowerer shop in town at Town God’s Temple Street and mixed it into each pot as a substitute for new earth.

从城隍店里买了包磷酸骨粉，搀和盆泥里，这算代替了新泥。