Tuberales

例句：

1. 1. Root nodules are beneficial for plants because they help them absorb nutrients from the soil.
   根瘤有助于植物吸收土壤中的养分。
2. 2.Rhizobia bacteria are responsible for fixing nitrogen in the soil, which helps plants grow healthier.
   根瘤细菌负责在土壤中固定氮，有助于植物生长。
3. 3. In agriculture, the use of root nodules can improve crop yields by increasing the amount of available nutrients in the soil.
   农业中使用根瘤可以提高土壤中可用养分的含量，从而增加作物产量。