How to Control Temperature During Organic Fertilizer Fermentation

The temperature, humidity, PH value and C/N ratio of compost during fermentation are important factors that affect compost fermentation. The temperature in the fermentation process of organic fertilizer can be summarized as: the temperature rises steadily in the early stage, the high temperature in the middle remains moderate, and the temperature decreases slowly in the later stage, and the control directly affects the maturity of the organic fertilizer in the later stage.

Today, Tongda Heavy Industry mainly explains how to control the temperature during the fermentation of organic fertilizers.

The temperature of normal organic fertilizer fermentation is mainly controlled by turning the heap and forced ventilation. In the early stage of fermentation, even if the fermentation temperature is slow or not at all, the heap must be turned or ventilated after 48 hours to avoid the formation of an anaerobic environment in the heap: in the high temperature stage When the heap temperature is lower than 50°C, the heap should be turned over in time (the reduction of oxygen will cause the reaction in the heap to gradually decrease, thereby reducing the temperature), increase the heap temperature, promote the decomposition of organic matter and kill harmful microorganisms; in the later stage of fermentation, once the temperature exceeds 65°C , The pile must be turned over in time to prevent carbonization and ammoniation of organic substances.

During fermentation, temperature control is very important. If the temperature is too low, the maturity standard will not be reached. If the temperature is too high, the nutrients in the compost will be easily lost. The temperature in the compost is within 30 cm from the outside to the inside.

Therefore, the metal rod of the thermometer used for measuring temperature should be longer than 30 cm. When measuring, it should be inserted into the compost for more than 30 cm in order to correctly reflect the fermentation temperature of the compost.

How to read stack temperature

1.When reading the temperature, make sure the thermometer is deep inside the stack, leave the thermometer for a while to allow the temperature to stabilize before taking the reading, and then move it to a new location (including several locations at different depths from the top edge) )

2.The temperature of the heap mainly depends on the moisture content and chemical composition of the raw materials.

3.There is a certain gradient in the fermentation temperature change. For the bottom ventilation system, the maximum temperature is about 2/3 of the bottom or higher.