Impacts of Elevated CO₂ and a Nitrogen Supply on the Growth of Faba Beans (Vicia faba L.) and the Nitrogen-Related Soil Bacterial Community.

ABSTRACT: Ecosystems that experience elevated CO₂ (eCO₂) are crucial interfaces where intricate interactions between plants and microbes occur. This study addressed the impact of eCO₂ and a N supply on faba bean (Vicia faba L.) growth and the soil microbial community in auto-controlled growth chambers. In doing so, two ambient CO₂ concentrations (aCO₂, daytime/nighttime = 410/460 ppm; eCO₂, 550/610 ppm) and two N supplement levels (without a N supply-N0-and 100 mg N as urea per kg of soil-N100) were applied. The results indicated that eCO₂ mitigated the inhibitory effects of a N deficiency on legume photosynthesis and affected the CO₂ assimilation efficiency, in addition to causing reduced nodulation. Whil

SUBMITTER: Dong X 

PROVIDER: S-EPMC11397150 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature