Organic fertilizer is a fertilizer obtained by fermentation and composting with biomass as raw material. In the preparation process of organic fertilizer, pile temperature is a key parameter, which directly affects the decomposition and conversion rate of organic matter. However, in actual operation, we often encounter the situation of pile temperature drop, which brings certain troubles to the preparation of organic fertilizer. So, what is the reason for the drop in pile temperature during organic fertilizer fermentation?
1. Selection and mixing ratio of raw materials
The raw materials of organic fertilizer are diverse, including crop straw, livestock and poultry manure, remaining peels, etc. Different raw materials contain different types and contents of organic matter. Therefore, in the process of preparing organic fertilizer, it is very important to choose suitable raw materials and reasonable mixing ratios.
When the raw material type is single or the mixing ratio is inappropriate, the decomposition rate of organic matter will slow down, thereby reducing the temperature of the pile. Therefore, in the process of preparing organic fertilizer, we need to select suitable raw materials and reasonable mixing ratios according to actual conditions to increase the pile temperature and the decomposition efficiency of organic matter.
2. Water control
In the fermentation process of organic fertilizer, water is a very important factor. Appropriate moisture content can promote the decomposition of organic matter, improve fermentation efficiency, and maintain the temperature of the pile. However, if there is too much or too little moisture, it will have an adverse effect on the fermentation process of organic fertilizer.
When there is too much moisture, it will cause poor drainage and insufficient oxygen supply, thereby inhibiting the decomposition and transformation of organic matter. At the same time, excessive moisture will also reduce the temperature of the pile and affect the fermentation effect.
On the contrary, when there is too little moisture, the decomposition rate of organic matter will slow down, thereby reducing the temperature of the pile. Therefore, in the process of preparing organic fertilizer, we need to reasonably control the moisture content and maintain appropriate humidity to increase the temperature of the pile and the fermentation effect.
3. Control of ventilation conditions
Ventilation is another important parameter in the fermentation process of organic fertilizer. Proper ventilation can provide sufficient oxygen supply, promote the decomposition and transformation of organic matter, and improve fermentation efficiency. However, if the ventilation conditions are poor and the oxygen supply inside the pile is insufficient, the decomposition rate of organic matter will slow down and the temperature of the pile will drop. In actual operation, we can improve ventilation conditions, increase oxygen supply, and improve the fermentation effect of organic fertilizer through reasonable stacking structure or the use of ventilation equipment.
In summary, the decrease in the temperature of the pile during the organic fertilizer fermentation process may be caused by factors such as improper selection and mixing ratio of raw materials, unreasonable water control, and poor ventilation conditions. In the process of preparing organic fertilizer, we need to pay attention to these factors and reasonably regulate them to improve the fermentation effect and obtain high-quality organic fertilizer products.