Liquid biofertilizer is an eco-friendly, nutrient-rich solution that delivers fast results in crop production. For farms and biofertilizer factories aiming to maximize the value of cow dung, converting it into liquid biofertilizer is a cost-effective and sustainable choice.
Here’s a complete guide on how to make high-quality liquid biofertilizer from cow dung, covering essential equipment and processing steps.
1. Pre-Treatment: Sedimentation & Filtration
Fresh cow dung contains a mix of solids and liquids. The first step is to allow the raw material to undergo natural sedimentation, separating larger solids from liquid components. After this, use a solid-liquid separator or fine mesh filtration system to remove suspended particles. This results in a clarified slurry ready for further treatment.
2. Sterilization & Disinfection
To ensure the safety and effectiveness of the liquid fertilizer, the filtered cow dung slurry must be sterilized. You can achieve this through UV sterilization or heat disinfection systems to kill pathogens and weed seeds. This step is crucial to comply with organic certification standards.
3. Fermentation & Chelation Process
Fermentation is the heart of the cattle manure liquid biofertilizer manufacturing process. In a closed fermenter or bioreactor, the sterilized slurry is inoculated with selected microbial strains. Fermentation helps break down organic matter, stabilize nutrients, and enhance microbial activity.
In parallel, chelation may be applied using organic acids or bio-chelating agents, converting trace elements into bioavailable forms. This improves nutrient uptake efficiency when applied in the field.
4. Nutrient Enrichment & Bioagent Addition
Once fermentation is complete, it’s time to adjust the nutrient profile. Depending on your crop needs, you can supplement the fermented biofertilizer with NPK compounds, seaweed extract, or amino acids. At this stage, beneficial microbial inoculants (such as nitrogen fixers or phosphate solubilizers) can also be added to improve plant resilience and soil health. Click here to get more!
5. Final Filtration & Liquid Fertilizer Bottling
Before packaging, the biofertilizer undergoes a second fine filtration to ensure it’s suitable for drip irrigation or foliar spray systems. Then, the liquid is bottled using automatic filling machines, labeled, and stored under hygienic conditions.
Our yushunxin liquid fertilizer bottling machines support customizable filling volumes, helping streamline your packaging and distribution.

Liquid biofertilizer production line
Need Equipment for Liquid Biofertilizer Production?
At YUSHUNXIN, we offer turnkey solutions for producing liquid biofertilizer from cow dung. Our equipment includes:
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Solid-liquid separators
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Stainless steel fermenters
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UV sterilizers
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Nutrient mixing tanks
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Liquid fertilizer bottling lines
Whether you’re starting small or scaling up to industrial-level production, our machines are designed to improve efficiency and product quality. Or if you want to know other liquid biofertilizer production technologies, welcome to visit: https://www.biofertilizerproduction.com/product/liquid-biofertilizer-production-technology/.








