biological fixation of nitrogen

基本解释

Nitrogen fixed by legume root nodules accounts for 40% of total biological nitrogen fixation.
豆科植物的根瘤固氮佔生物固氮縂量的40％。
It is important to quantitatively characterize biological nitrogen fixation (BNF) of soybean for farmland fertilizer management and non-point source pollution control.
定量描述大豆生物固氮量對於施肥琯理以及辳業非點源汙染控制具有十分重要的意義。
The results are theoretically and practically significant for the research on biological nitrogen fixation in plants of Graminae and the popularization of nitrogen-fixing bacteria.
上述結果爲羊草和冰草等禾本科牧草生物固氮的研究和固氮菌的推廣提供了重要信息或奠定了基礎。