Cow dung, seemingly useless waste, can be transformed into a precious organic fertilizer through a series of scientific and sophisticated processes, injecting a steady stream of fertility into the soil. The following is the process of making cow dung into organic fertilizer:

Raw material collection: Collect fresh cow dung from the farm, which is the basic raw material of the entire process. Make sure the source is pure and avoid mixing too many impurities.

Pre-composting: Pile the collected cow dung in a well-ventilated, flat and rainproof site. Let it ferment naturally to activate the microorganisms inside.

Adding auxiliary materials: In order to adjust the carbon-nitrogen ratio and air permeability of cow dung, some auxiliary materials need to be added, such as straw, sawdust, etc. These auxiliary materials are mixed evenly with cow dung in a certain proportion, usually 70-80% of cow dung and 20-30% of auxiliary materials.

Turning and fermentation: This step is a key step. During this period, a Compost Turning Machine should be used to turn the pile regularly. Turning the pile allows the cow dung to fully contact the air and ensure the smooth progress of aerobic fermentation. During the fermentation process, the temperature of the pile will gradually increase, up to 60-70℃. This high temperature stage can kill harmful organisms such as pathogens and eggs in the cow dung. This stage lasts for 2-3 weeks, during which parameters such as the temperature and humidity of the pile need to be continuously tested.

Post-ripening treatment: Move the pile to the post-ripening site and continue to pile for 1-2 weeks. The temperature gradually drops, and the microorganisms further decompose the remaining organic matter, making the fertilizer more stable.

Screening and packing: Screen the materials after post-ripening treatment to remove the undecomposed large pieces of material. The fine particles obtained are the finished cow dung organic fertilizer, which are then packed and stored, waiting to be transported to farmland in various places to inject fertility into the soil.

If you also want to granulate the fermented cow dung, you need to add the following processes:

Granulation: The fermented material is converted into uniform, easy-to-handle granules through a fertilizer granulator (such as Rotary Drum Granulator) to ensure the consistency of nutrient distribution.

Drying and cooling: After the granulation stage is completed, the material needs to be dried and cooled to remove excess moisture in the material, enhance the stability of the fertilizer, and facilitate storage and transportation.

Screening and packing: The Fertilizer Screener Machine is used to screen out granules of uniform size and quality, and then the final packing is carried out.

This cow dung organic fertilizer production process not only solves the problem of cow dung pollution, but also provides a high-quality fertilizer source for agricultural production. It is an important part of realizing green circular agriculture.