effective phosphorus content

• 有效磷含量

effective phosphorus content的用法和样例：

例句

1. The available nitrogen and phosphorus contents in root rhizosphere were greater than those in bulk soil, while its content of the available potassium was lower.
   根际碱解氮和有效磷含量高于非根际土壤，其速效钾含量却低于非根际土壤。