nutrient concentration

例句：

1. 1.The food contains a high concentration of vitamins and minerals.
   这种食物含有高浓度的维生素和矿物质。
2. 2.The plant has a low nutrient concentration, which is beneficial for growth.
   这种植物的营养成分浓度低，有利于生长。
3. 3. The soil's nutrient concentration affects the plants' growth rate.
   土壤的营养成分浓度影响植物的生长速率。