Metagenomics reveals divergent functional profiles of soil carbon and nitrogen cycling under long-term addition of chemical and organic fertilizers in the black soil region

• Biogeographic distance rather than fertilization dominated microbial functional profiles in Mollisols. • Chemical fertilization promoted processes of methane oxidation, soil N degradation, nitrification and anammox. • Manure fertilization shifted C fixation and degradation processes and facilitated nitrate reduction. • Chemical plus manure fertilization could potentially enhance N2O emission via denitrification. • Soil P contents were the most influential factor in controlling microbial functional profiles. The long-term effects of different fertilization regimes on the microbial functional potential of soils involving nutrient cycling remain largely unknown. Here, metagenomic sequencing was applied to…

• NN
  National Natural Science Foundation of China

  Awards: 41907035, ANSO-PA-2020-12
• CA
  Chinese Academy of Sciences

  Award: XDA28020201