Frigen

例句：

1. 1. The farmer needs to apply a proper amount of fertilizer to the soil before planting.
   农民在播种前需要给土壤施加适量的肥料。
2. 2.The company produces a variety of fertilizers for different crops.
   该公司生产多种适合不同作物的肥料。
3. 3. The scientist discovered that certain types of nutrient can enhance plant growth.
   科学家发现某些营养物质可以促进植物生长。