Effects of legume (soybean) and non-legume (maize) on soil total nitrogen-fixing gene relative abundance (a), and the relative abundance of nifH (b), nifD (c) and nifK (d) genes at three soil depths (0–20 cm, 20–50 cm and 50-100 cm).

Yi-Heng Tao et al. investigated the #CommunityStructure of soil #Nitrogen-fixingMicroorganisms in different soil layers under #Legume and non-legume cultivation .Both #TotalCarbon and #DissolvedOrganicCarbon were identified as key drivers of #Nitrogen-fixingGenes.
Details: doi.org/10.1093/jpe/...