fertilizer boot

例句：

1. 1.The farmer used the fertilizer boot to apply the chemical directly to the soil.
   农民使用肥料袋将化学肥料直接施于土壤中。
2. 2. The farmers were using a fertilizer boot to apply the fertilizer to the plants.
   农民们正在使用肥料袋向植物施加肥料。
3. 3.The farmer used a fertilizer boot to apply the fertilizer to the plants.
   农民使用肥料袋向植物施加肥料。