What is the reason for the yellow drops of water on the mouth of the fungus bag?
Black fungus cultivation is divided into spring ear and autumn ear. The spring ear produces fungus bag in winter, spring fungus, spring and summer fungus bag opens out ear. Autumn ears produce fungus packs in late spring and early summer, fungus grows in summer, and fungus packs open to produce ears in autumn. This year, during the fungal growth period of autumn fungus, many fungus farmers reported that yellow water droplets appeared at the mouth of the fungus bag, which did not occur in previous years. What is the reason? This article analyzes the reasons for the yellow water droplets appearing in the bags of autumn fungus during the germination period, and puts forward prevention and treatment measures for the reference of black fungus cultivators:
Cause Analysis
The main reason for the yellow drops of water appearing at the mouth of the bag during the process of the fungus fungus is that the night temperature is not high this summer, and the lowest temperature is below 18°C. The daytime temperature is higher, reaching a maximum of 30°C or more. The temperature in the bacteria-growing shed reached above 35°C, and the temperature difference between day and night in the bacteria-growing shed was 12°C, which was larger than the temperature difference in previous years. Secondly, the bacteria growers open the doors and windows of the bacteria development shed day and night for ventilation, which leads to a larger temperature difference between day and night in the bacteria development shed. When the temperature is high during the day, the water in the compost evaporates, and when the temperature is low at night, the evaporated water condenses into water droplets and gathers at the mouth of the bacteria bag. The above two factors are the root cause of the large amount of condensed water in the bag of autumn ear mushrooms this year and the accumulation at the mouth of the bag.
Treatment methods and precautions
Yellow drops of water appearing at the mouth of the autumn ear fungus bag should be dealt with in time, otherwise the serious pollution of moss and green trichoderma will occur when the fungus bag comes out of the ear. The correct treatment method is: change the ventilation method, the doors and windows cannot be opened for day and night ventilation, the doors and windows should be closed, and the exhaust fan or axial flow fan should be used for ventilation. Generally, an exhaust fan is installed on 50 square meters, so that the temperature in the bacteria shed will drop slowly, reduce the temperature difference, and prevent the generation of condensed water. Extend the ventilation time, from 6 am to 11 am and from 15 pm to 20 pm, and ventilate for more than 10 hours a day. Ventilation reduces the relative humidity of the air and allows condensed water to evaporate. In rainy days, the stuffy shed is not ventilated to prevent outdoor air humidity from entering the shed. If the relative humidity of the air in the bacteria shed exceeds 70%, a desiccant can be placed on the floor of the shed to reduce the humidity in the shed, keep the bacteria shed dry and reduce the generation of condensed water.