Delayed application of N fertilizer mitigates the carbon emissions of pea/maize intercropping via altering soil microbial diversity.

ABSTRACT: Strategies to reduce carbon emissions have been a hotspot in sustainable agriculture production. The delayed N fertilizer application had the potential to reduce carbon emissions in pea (Pisum sativum L.)/maize (Zea mays L.) intercropping, but its microbial mechanism remains unclear. In this study, we investigated the effects of delayed N fertilizer application on CO₂ emissions and soil microbial diversity in pea/maize intercropping. The soil respiration (Rs) rates of intercropped pea and intercropped maize were decreased by 24.7% and 25.0% with delayed application of N fertilizer, respectively. The total carbon emissions (TCE) of the pea/maize intercropping system were also decreased by 21.1% compared with that of the traditional N fertilizer. Proteobacteria, Bact

SUBMITTER: Xu K 

PROVIDER: S-EPMC9539669 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature