What Effective Microorganism Agents Are Used in Biofertilizer Production?

---

In the production of biofertilizer, the role of effective microorganism (EM) agents is fundamental. These microbial strains not only accelerate composting but also enhance soil fertility and plant growth when applied. This blog explores the most commonly used EM agents in biofertilizer production, the optimal timing for their application, and the related equipment that ensures their effective integration into the production line.

---

1. Common Types of Effective Microorganism Agents

Effective microorganism agents used in biofertilizer production typically include a combination of beneficial bacteria, fungi, and actinomycetes. Each strain serves a specific purpose:

• Bacillus subtilis – Promotes organic matter decomposition and suppresses pathogens.

• Azotobacter – Fixes atmospheric nitrogen and improves soil fertility.

• Phosphate-Solubilizing Bacteria (PSB) – Enhances phosphorus availability to plants.

• Trichoderma spp. – Fungi that suppress soil-borne diseases and promote root health.

• Actinomycetes – Aid in breaking down cellulose and lignin from crop residues.

These EM agents are typically supplied as dry powders or liquid inoculants and must be introduced carefully during processing.

---

2. Application Timing in Biofertilizer Production

To maintain the viability of microbial strains, the timing of EM agent addition is critical:

A. During Composting (Thermophilic Phase)

Purpose: Enhance decomposition, accelerate fermentation.

Best Applied With:

• Compost turner: During pile turning, EM liquids or powders are evenly sprayed or blended into the windrow or groove compost system.

• Spray systems: Integrated nozzles mounted on compost turners improve distribution of microbial agents.

Note: Only heat-tolerant strains (like Bacillus subtilis) should be added during this high-temperature phase.

---

B. Post-Composting (Cooling/Maturation Phase)

Purpose: Enrich biofertilizer with functional microbes that are sensitive to high heat.

Best Applied With:

• Horizontal mixer or double-shaft mixer: Mixes EM agents with fermented compost after it cools below 40°C.

• Microbial dosage feeder (optional): Automatically controls EM input based on volume and moisture content.

This stage is ideal for nitrogen-fixing bacteria and phosphate-solubilizers to maintain biological activity.

---

C. Pre-Granulation or Coating Stage

Purpose: Final microbial enhancement before storage and application.

Best Applied With:

• Disc granulator or new-type organic fertilizer granulator: EM agents can be introduced during wet granulation.

• Coating machine: Adds heat-sensitive or functional microbes after drying and cooling, preserving their viability.

By applying EM agents after granule formation, you avoid heat damage and extend shelf life.

---

3. Equipment for Supporting EM Integration

A modern biofertilizer production line incorporates several machines to support EM application:

---

Conclusion

Understanding what effective microorganism agents are used in biofertilizer production is key to creating high-value, sustainable fertilizers. By combining strains like Bacillus, Azotobacter, and Trichoderma with the right processing equipment and timing strategies, producers can achieve optimal microbial activity and product quality.

Whether during composting, mixing, or coating, EM integration depends heavily on the biofertilizer equipment you use. With automated mixers, compost turners, and granulators designed to support microbial inoculant use, your production line can deliver consistent, biologically enriched fertilizers to meet modern agricultural demands. Welcome to visit :https://www.biofertilizerproduction.com/faq-items/how-to-use-effective-microorganism-in-bio-compost-making-process/

---

Effective Microorganism Agents