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How to Make Cow Dung Fertilizer

Rapid cattle industry growth leads to significant cow dung pollution, exceeding industrial levels. Lack of attention to cow dung treatment results in piling up, causing environmental and health issues. Cow dung is a source of pathogens and can harm plant growth. Proper cow manure treatment is crucial.

Cow dung is versatile and can be processed into organic fertilizer for greater benefits. To do this, dry or drain the cow dung to maintain moisture below 85% and add straw powder. Maintain a 7:3 ratio of cow dung to straw powder, controlling carbon ratio at 23-28 and water content at 52%-68%. Lastly, introduce the organic fertilizer fermentation decomposing agent.


Benefits of Cow Manure Fertilizer

  • Rich in nutrients: Firstly, cow dung is rich in nitrogen, phosphorus, potassium, and other nutrients, making it an excellent source of plant nutrition. By utilizing cow dung organic fertilizer, it becomes possible to supply the essential nutrients needed for robust plant growth. Additionally, this organic fertilizer can significantly improve soil quality and foster optimal crop development.
  • Improve soil structure: Moreover, cow dung organic fertilizer offers the benefit of enhancing soil structure. Thanks to its exceptional water retention and air permeability properties, it actively contributes to improved soil structure, heightened soil fertility, and efficient moisture retention.
  • Enhance soil biological activity: Furthermore, cow dung organic fertilizer serves as a catalyst for enhancing soil biological activity. Owing to its high organic matter content, it acts as a valuable source of nourishment and shelter for microorganisms and beneficial organisms residing in the soil. This, in turn, promotes robust soil biological activity and cultivates a healthier soil ecosystem.
  • Environmentally friendly and sustainable: Notably, cow dung organic fertilizer stands out as an environmentally friendly and sustainable choice. As a natural organic fertilizer, it is free from chemical synthetic substances, ensuring minimal soil and water pollution. Additionally, it represents a renewable resource that can be recycled, supporting sustainable agricultural practices.
  • Improve the quality of agricultural products: Lastly, the utilization of cow dung organic fertilizer yields improved quality in agricultural products. It enhances crop quality, increases yields, and importantly, meets food safety standards as it does not leave behind harmful residues on the produce.

Steps of Processing Cow Dung into Fertilizer

Step1: Collect Cow Dung

Collection is the initial step in the process of processing cow dung into fertilizer. Fresh cow dung is collected from reliable sources such as dairy farms or cattle ranches. It is important to ensure that the cow dung is collected in a clean and hygienic manner to minimize the risk of contamination. Proper handling and storage techniques should be followed during the collection process to maintain the quality of the cow dung and prevent any odors or spread of pathogens.

Step2: Solid-Liquid Separation

After collecting the cow dung, the next step in processing it into fertilizer is solid-liquid separation. This step involves separating the solid and liquid components of the cow dung. There are various methods to achieve solid-liquid separation, It is recommended to use our cow dung solid-liquid separator.


Solid-liquid separation is performed to obtain the solid fraction, which is further processed to create fertilizer, while the liquid portion can be used separately or undergo additional treatment. The separated solid cow dung is then ready for the subsequent steps in the fertilizer production process.

Step3: Drying

  • Dry the solid cow dung fraction to reduce its moisture content.
  • Utilize industrial dryers like rotary drum dryers or fluidized bed dryers to achieve efficient drying.
  • Drying is crucial for subsequent processing steps and to prevent microbial growth.

Our fertilizer dryer excels in efficiently and effectively drying cow dung, ensuring optimal moisture reduction and facilitating the production of high-quality organic fertilizer.


Step4: Composting

  • Compost the dried cow dung to convert it into organic fertilizer or soil amendment.
  • Mix the dried cow dung with other organic materials like crop residues, straw, or green waste to create a balanced compost mixture.
  • Maintain proper moisture, aeration, and temperature levels to facilitate decomposition and microbial activity.
  • Regularly turn the compost piles or use specialized composting equipment for efficient composting.

Step5: Crusher

After the solid-liquid separation process, the solid cow dung fraction can be processed through a crusher or grinder. The crusher breaks down the solid cow dung into smaller particles, facilitating further processing and ensuring a more uniform texture for the final fertilizer product.


Step6: Granulation (optional)

  • Optionally, process the composted and sieved cow dung into granules for easier handling, packaging, and application.
  • Use granulation equipment such as pan granulators, rotary drum granulators, or extrusion granulators to form uniform granules.
  • Granulation can enhance the efficiency and convenience of using cow dung fertilizer.

Step7: Quality Control and Packaging

  • Implement quality control measures to ensure the final product meets desired standards and regulatory requirements.
  • Test the fertilizer or granules for nutrient content, moisture levels, and absence of contaminants.
  • Package the processed fertilizer or granules into bags, sacks, or other appropriate containers.
  • Label the packages with relevant information regarding the product.

Step8: Storage and Distribution

  • Store the packaged cow dung fertilizer or granules in appropriate storage facilities to maintain product quality and shelf life.
  • Establish distribution channels to supply the cow dung products to farmers, gardeners, or agricultural suppliers.
  • Ensure timely delivery and proper handling during distribution to preserve product integrity.


Throughout the processing flow, it is crucial to prioritize safety, hygiene, and environmental considerations. The specific steps, equipment, and scale of operations may vary in different cow dung factories based on their production goals and available resources.

If you need to make cow manure into organic fertilizer, you can contact us at any time, we can give you the best solution and help you solve the problem.


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