1. Climate: people should spray more water to increase the humidity when encountering dry climate.
2. Temperature of mushroom greenhouse: when the temperature is above 25 degrees, people should spray water after temperature drops in the morning or in the late night.
3. Moisture retention: people should spray more water to mushroom house which has poor moisture retention.
4. Degree of dry and wet on mushroom bag: people should spray more water on dry mushroom bag.
5. Strong and weak consistency of spawn: people should spray more water on strong consistency of spawn.
6. The quantity of mushroom: large quantities of mushroom have fast water consumption and need more water.