lupinal

例句：

1. 1. The lupinal plant is a member of the pea family.
   这种植物是豌豆家族的成员。
2. 2. Lupinal is a natural fertilizer that can be used to improve soil quality.
   卢比农是一种天然肥料，可以用来改善土壤质量。
3. 3. Lupinal is often used as a substitute for chemical fertilizers in agriculture.
   在农业中，卢比农经常被用作化学肥料的替代品。