Biological organic fertilizer contains various nutrients and rich organic matter required by crops. It has many advantages such as no pollution, long-lasting fertilizer effect, strong seedlings and disease resistance, improved soil, and increased crop yield and quality. It can also overcome the disadvantages of environmental pollution, ecological damage, and soil fertility decline caused by the large-scale use of chemical fertilizers and pesticides. When the raw materials are pretreated, they will enter the primary fermentation stage. So, at this time, what precautions should be taken in the
biological organic fertilizer production line?
1. Composting fermentation:
The mixed raw materials are sent to the primary fermentation workshop and piled into a fermentation pile.
The fermentation temperature is controlled at 50℃～65℃ for aerobic fermentation. The pile needs to be turned regularly during the fermentation process, generally once every 2 days, and water and nutrients are added.
The fermentation cycle depends on the raw materials and process conditions, generally ranging from 8 to 20 days.
2. Temperature and humidity control:
During the fermentation process, the changes in temperature and humidity need to be closely monitored to ensure the stability of the fermentation process.
When the pile temperature rises above 60℃, it needs to be maintained for a period of time (such as 48 hours) to kill pathogens, insect eggs and grass seeds.
If the pile temperature is too high (over 70℃), the pile needs to be turned immediately to lower the temperature.
