sparassol

例句：

1. 1.The sparassol is a type of soil that is rich in nutrients.
   这种土壤富含养分，被称为腐殖土。
2. 2. The sparassol is used to grow crops like wheat and barley.
   腐殖土用于种植小麦和大麦等作物。
3. 3.The sparassol has a high organic matter content, which makes it suitable for organic farming.
   腐殖土的有机质含量高，适合有机农业。