seedling crop

例句：

1. 1.The farmers are planting a new variety of seedling crop to improve the soil quality.
   农民们正在种植一种新的种子幼苗作物，以提高土壤质量。
2. 2. The government is considering introducing a policy to protect the seedling crop from pests and diseases.
   政府正在考虑引入一项政策，以保护种子幼苗作物免受病虫害的侵害。
3. 3.The research team has discovered a new method to increase the yield of seedling crops.
   研究小组发现了一种提高种子幼苗作物产量的新方法。