nitrophosphate

例句：

1. 1. Nitrogen and phosphorus are essential nutrients for plant growth.
   氮和磷是植物生长所必需的营养物质。
2. 2.The soil test showed that the nitrophosphate levels were high in this area.
   土壤测试显示，该地区的硝酸盐磷含量较高。
3. 3.The farmers used to use nitrophosphate fertilizers to improve the soil's fertility.
   农民过去使用硝酸盐磷肥料来提高土壤的肥力。