Abstract:

This study analyzed the development status of Beijing’s microbial fertilizer industry using local registration data, focusing on enterprise distribution, product structure, and effective viable bacteria composition. As of June 2025, 62 enterprises in Beijing had registered 352 microbial fertilizer products, showing a distinct industrial concentration: 9 key enterprises contributed 53.13% of total registered products, while 70% of enterprises had ≤5 products and 27.42% had only 1 product. In product structure, microbial agents dominated (48.58%), followed by bio-organic fertilizers (20.45%) and compound microbial fertilizers (16.48%). For effective viable bacteria, bacteria were the primary component (87.13%), supplemented by fungi (10.33%) and actinomycetes (2.25%); algae application was minimal (0.30%). Strain usage was concentrated in Bacillus (58.53%) and Paenibacillus (20.06%). Notably, most products had low effective viable bacteria content: 85.80% of products had a registered count ≤1.0×10⁹ CFU/g (mL), while only 3.41% reached ≥2.0×10¹¹ CFU/g (mL). It is suggested to establish a microbial resource library in Beijing, focusing on the collection and preservation of strains adapted to the climate and soil conditions in the north, break technical bottlenecks (synthetic microbial community construction, action mechanism elucidation, strain activity maintenance, and field colonization-interaction), and enhance enterprise innovation capabilities.

Key words: microbial fertilizer, fertilizer registration, effective viable bacteria, industry concentration, Beijing