diatomaceous earth

例句：

1. 1.The limestone soil is rich in minerals and nutrients.
   石灰石土富含矿物质和养分。
2. 2. The limestone soil is suitable for planting vegetables.
   石灰石土适合种植蔬菜。
3. 3.The limestone soil has a high pH level, which makes it ideal for growing plants.
   石灰石土的pH值较高，非常适合种植植物。