Effects of microbial organic fertilizer on nitrogen cycling-related microbial communities and nitrogen-fixing system stability in saline soil.

ABSTRACT: Microbial organic fertilizers (MOFs) have shown to improve nitrogen fixation efficiency, particularly under saline or nutrient-stressed conditions. However, the mechanisms by which MOF influence nitrogen-cycling microorganisms and ammonia (NH₃) volatilization in saline-alkali soils are still unclear. This 2-year field study demonstrated that the application of MOF reduced NH₃ emissions by 21% and 10%, compared to farmyard manure fertilizer (FMF) and control (CK) treatments. MOF treatment significantly enhanced crop nitrogen uptake by 40.5% and 80.3%, respectively, relative to FMF and CK. The number of nifH gene copies was significantly higher with MOF treatment than with CK treatment, with an increase of up to 98%. The abundance of nifH increased by 41.3

SUBMITTER: Cong P 

PROVIDER: S-EPMC12933569 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature