How to tell if the cow dung is completely decomposed?
1.Looseness: The biological fermentation method starts to loosen from the fourth day of fermentation and in the form of broken powder.
2.Odor : The odor of the biological fermentation is reduced from the second day, basically disappears on the fourth day, completely disappears on the fifth day, and emits the fragrance of the soil on the seventh day.
3.Temperature: The biological fermentation method reaches the high temperature stage on the 2nd day, and starts to fall on the 7th day. The high temperature stage maintains a long time, and the fermentation will be completely decomposed.
4. Color: The color changes from the initial yellow to coffee or dark brown.
5.Moisture content: The initial moisture content of the fermentation raw material is 55%, and the moisture content of the biological fermentation can be reduced to 30%.
6.Carbon-nitrogen ratio: When the carbon-nitrogen C/N ratio of compost reaches below 20, it will reach the maturity index.
7. The number of Escherichia coli and the death rate of Ascaris eggs. Fecal coliform count ≤ 100/gram (mL) Ascaris egg mortality ≥ 95%.
8. Seed germination rate: The germination rate of fermented cow manure is over 80%.
We sell cow dung fermentation equipment, and all indicators meet or exceed national standards. After fermentation, you can make powder or granular fertilizer. We have realized one-stop service for design, manufacture, installation, debugging, technical training. Different models and configurations is different price. Welcome to contact us for details.