nitrogen-fixing capacity

例句：

1. 1.The soil's nitrogen-fixing capacity is crucial for plant growth.
   土壤的固定氮能力对植物生长至关重要。
2. 2. The efficiency of the fertilizer depends on its nitrogen-fixing capacity.
   肥料的效率取决于其固定氮的能力。
3. 3. The farmer used a special bacteria to increase the soil's nitrogen-fixing capacity.
   农民使用一种特殊的细菌来增加土壤的固定氮能力。