1. Ventilation: In the production process of organic fertilizer, open the exhaust valve on the fermentation equipment in time, so that the gas in the fermentation room is discharged in time, and fresh air is supplemented in time to promote the fermentation and decomposition of organic fertilizer.

2. Add deodorant: In the production process of organic fertilizer equipment, add some microbial bactericides and enzymes with deodorizing function, which can effectively inhibit the production of odorous substances.

3. Soil burial: The incomplete fermentation of organic fertilizer is buried in the soil, and the fermentation and decomposition continue under the action of microorganisms in the soil, and the volatilization of odorous substances can be effectively inhibited.

4. Plant absorption: In the process of organic fertilizer production, some plants that can absorb odor, such as hanging orchids, green plants, aloe vera, etc., can effectively absorb odor substances and purify the air.

It should be noted that different deodorization methods are suitable for different fermentation environments and conditions, so when selecting deodorization methods, it is necessary to select and adjust according to the actual situation. At the same time, in order to ensure the quality and safety of organic fertilizers, it is also necessary to strictly monitor and manage the deodorization process.