ammonium ferric sulfate

例句：

1. 1. This chemical is used to treat plant diseases.
   这种化学物质用于治疗植物疾病。
2. 2. The fertilizer contains ammonium and iron, which helps plants grow.
   这种肥料含有铵和铁，有助于植物生长。
3. 3. The soil needs a balanced mix of nutrients to support healthy growth.
   土壤需要平衡的养分组合来支持健康生长。