Table 1.

Future research directions on the relationship between soil microbial diversity and sustainable agricultural production.

Content	Description	Recent findings	References
Microbial functional analysis	Functional partitioning of microbial taxa in critical processes (N/P cycling)	Identification of Nitrospira as dominant nitrifiers in acidic soils, modulated by fertilization	Hu et al. (2022) and Philippot et al. (2024)
Diversity-soil health nexus	Mechanisms by which diversity enhances soil resilience (aggregate stability, nutrient retention)	1-unit diversity increase correlates with 12% higher soil compressive strength and 18% reduced nutrient leaching	Hartmann and Six (2023) and Etesami (2024)
Agricultural practice impacts	Long-term effects of crop rotation/reduced tillage on microbial structure	Organic amendments reduce Fusarium abundance by 42% while increasing AM fungal biomass by 65%	Cerecetto et al. (2021) and Pratibha et al. (2023)
Microbe-plant interactions	Molecular pathways of PGPR-mediated stress resistance	Arbuscular mycorrhizae enhance maize drought tolerance via aquaporin (PIP2;1) induction	Das et al. (2022) and Wahab et al. (2023)