Zhengzhou Tianci Heavy Industry Technology Co., Ltd.

Natural fermentation of organic fertilizer

There are various raw materials in the production process of organic fertilizer equipment. In the early stage, organic fertilizer raw materials need to be fermented. Now I'll give you a brief introduction to the matters needing attention
I. water content: the water content of aerobic composting materials is generally kept at 45-65%. If the water content is too large, the oxygen content in the material gap cannot meet the demand of microorganism for oxygen; if the water content is too small, the activity of soluble organic matter urea crusher will become poor, which will prevent the supply of nutrients to microorganism.
2. Oxygen content and temperature: the actual ventilation time of aerobic compost is controlled according to the stack temperature measurement. In the initial stage, the number of pile turnover can be reduced, which is conducive to the rise of pile temperature. When the temperature rises to about 70 ℃, the pile shall be turned over in time, and the compost machine can be used for ventilation and oxygen supply, so that the pile temperature will not exceed 70 ℃. When the temperature is above 70 ℃, the microorganism is in spore state, and the activity of microorganism is almost zero.
3. PH value: in the composting process, the pH value of the material will change with the different fermentation stages, but it has the ability to adjust itself. PH value between 5-8 has no effect on composting. If the organic fertilizer production line of cow manure is away from this range, it is necessary to adjust the materials, such as adding the finished compost. At the end of composting, pH value was almost all around 8.5.
4. C / N ratio: it is generally controlled at about 25, and it is suitable to mix with other materials for adjustment. C / N ratio is suitable, which is conducive to the accelerated fermentation of materials.
5. Particle size: 15-50 mm.