Unlocking Biofertilizer Production Technology: From Microbial Inoculants to Automated Manufacturing Lines

As the global demand for sustainable agriculture continues to grow, biofertilizer production technology is becoming an essential solution for enhancing soil fertility without relying on synthetic chemicals. This blog will walk you through the core technologies, production processes, and equipment involved in manufacturing high-quality biofertilizer at scale.


What Is Biofertilizer and Why Is It Important?

Biofertilizers are formulations containing live microorganisms that promote plant growth by increasing the availability of nutrients like nitrogen, phosphorus, and potassium. Common microbial strains include Azotobacter, Rhizobium, Bacillus, and phosphate-solubilizing bacteria.

These beneficial microbes improve soil health, boost crop yields, and help reduce the dependency on chemical fertilizers—making them a preferred choice in organic and sustainable farming.


Overview of Biofertilizer Production Technology

A typical biofertilizer production line combines biological fermentation technology with granulation and packaging systems, offering a scalable method to produce powdered or granular biofertilizer products. Click here to get more! 

The production process generally includes the following stages:

1. Raw Material Preparation

Organic waste such as animal manure, biogas residue, agricultural byproducts, and composted vegetable scraps are selected and pretreated.

2. Fermentation and Composting

Using aerobic or anaerobic fermentation (via windrow turners, in-vessel fermenters, or compost tanks), raw materials are decomposed to eliminate pathogens and prepare for microbial enrichment.

3. Crushing and Mixing

A biofertilizer crusher breaks down compost lumps, while horizontal mixers blend microbial inoculants with the compost evenly.

4. Granulation (Optional)

For granular biofertilizer production, granulation machines like the pan granulator, drum granulator, or double roller extrusion granulator are used to form uniform, easy-to-apply pellets.

Double roller granulators are especially suitable for low-temperature microbial formulations, ensuring the survival of beneficial bacteria during granulation.

5. Drying, Cooling & Screening

In granule lines, drying and cooling equipment reduces moisture and strengthens granule hardness. A rotary screener then classifies granules by size.

6. Coating and Inoculation

To improve product stability or add microbial strains post-granulation, a coating machine can be used—ensuring high survival rates of functional microbes.

7. Packaging

A biofertilizer bagging machine ensures accurate weight control, high-speed packaging, and sealing, whether for 20kg retail bags or bulk orders.

Key Equipment in a Biofertilizer Production Line

Equipment Function
Fermentation Windrow Turner Speeds up aerobic composting
Vertical Crusher Breaks down large compost chunks
Horizontal Mixer Blends microbial agents and additives
Double Roller Granulator Cold granulation, ideal for microbial agents
Rotary Dryer & Cooler Reduces moisture, hardens granules
Rotary Screener Classifies and refines final product
Coating Machine Adds microbial agents post-granulation
Bagging Machine Ensures efficient final packaging

Flexible Production Lines to Match Your Needs

Whether you’re building a 1 t/h microbial biofertilizer line for local farms or a 20 t/h industrial plant, YUSHUNXIN offers tailored solutions:

  • Powder Biofertilizer Line: Simple, cost-effective, no granulation

  • Granular Biofertilizer Line: Higher value, longer shelf life

  • Customized Integration: Based on raw materials and microbial inputs

Ready to Start Your Biofertilizer Factory?

Whether you’re an organic grower, agribusiness, or waste recycling facility, investing in the production technology of biofertilizer helps you turn waste into value. At YUSHUNXIN, we offer:

  • Free factory layout design

  • Equipment selection and technical support

  • Turnkey project service and on-site installation

  • Support for microbial agent integration

Contact us now to learn more about our biofertilizer production lines for sale, and start making sustainable agriculture your profitable future.

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