营养, 培养基

The understory vegetation and dead litter play a great role in the nutrien t cycling of the ecosystem. 林下植被和死地被物层在系统养分循环中具有重要作用.

Compound fertilizer and ammonium bicarbonate were used as vaccine nutrien.They were efficacious.The cost of nutrien can be saved about 40%. 菌种营养素采用复合肥和碳酸氢铵效果很好，可节约40%25左右成本。

Keywords college studen diet nutrien memory; 大学生;膳食;营养素;记忆力;

4.The dynam ics of the nutrien t concen trations in the incubated bottles. 标题： 图4培养瓶中营养盐浓度的变化 F ig.

, and nutrien such as starch, protein, amino acid, vitamin and mass microelement. 具有润肺止咳,清心安神,增强机体免疫力等功效。

n.营养素，营养物，营养品（名词nutrient的复数形式）

adj.营养的；滋养的

n.营养物；营养品