Cow manure is a common organic waste that can be converted into high-quality organic fertilizer through proper fermentation and treatment. The following will introduce the methods and steps of how cow dung is fermented into fertilizer.
1. Prepare materials.
1.Cow dung: Cow dung is collected together and dried or tumble dried to remove moisture from it.
2.Starter culture: choose the appropriate amount of starter culture, and you can choose different starter cultures according to your needs, such as rotting culture, fast starter culture, etc.
3.Regulators: If needed, add an appropriate amount of regulators, such as urea, superphosphate, etc., to increase the fermentation effect.
4.Moisture: After mixing cow dung and starter culture in a certain proportion, add an appropriate amount of water and adjust the humidity to 60% to 80% to facilitate the reproduction of microorganisms.
2. Fermentation method.
1.Compost fermentation: Cow manure and starter culture are mixed in a certain proportion and stacked outdoors or in a fermentation tank, covered with a layer of soil or plastic film to maintain humidity and temperature. After a period of fermentation, cow dung will gradually rot and turn into brown or black fertilizer.
2.Tower fermentation: Cow dung and starter culture are mixed and poured into a tower fermentation unit to ferment through the decomposition of microorganisms. This method can speed up fermentation and improve fertilizer efficiency.
3.Tank fermentation: Cow manure and starter culture are mixed and then placed in sealed tanks for fermentation by the action of microorganisms. This method can reduce odor production and improve fertilizer efficiency at the same time.
3. Precautions.
1.During the fermentation process, attention should be paid to controlling the temperature and humidity to maintain a suitable fermentation environment.
2.The length of fermentation time depends on factors such as temperature, humidity, composition of cow dung and type of starter culture, and generally takes 1 to 3 months.
3.Care should be taken to prevent odors during the fermentation process, either by covering the surface with a layer of soil or by using a closed fermentation unit.
4.Fermented fertilizers can be used as base fertilizer or top dressing, which plays an important role in improving soil fertility and promoting plant growth.
In short, through reasonable fermentation and treatment, cow manure can be converted into high-quality organic fertilizer, which is of great significance for improving the efficiency of agricultural production and protecting the environment.