Skillfully solve the contradiction between heating, moisturizing and ventilation of edible fungi in winter

1. Reasonable heating up

Take Pleurotus ostreatus as an example, Pleurotus ostreatus no longer grows when the temperature is less than 5 ℃. Even if the low-temperature strains such as 2006 and Tekang 1 do not have physiological diseases at about 4 ℃, they still need a temperature of more than 10 ℃ to grow well. Therefore, heating up and moisturizing in winter production has become a vital management task. In general, the increase of temperature can be solved by means of sunlight heating, furnace in the shed and so on. However, when the stove heats up, most mushroom farmers often seal the mushroom shed for fear of "running away from the hot air", resulting in serious poor ventilation, accumulation of carbon dioxide and high humidity, resulting in deformed mushrooms, but also lead to the occurrence of some infectious diseases. Camellia mushroom, Pleurotus ostreatus and cauliflower mushroom, which are common in production, all occur because of this. Some infectious diseases, such as rot, are also closely related to poor ventilation and high humidity. Solution: under natural conditions, when the weather is fine, ventilation begins after 10:00 and ends at about 14:00. Pull a layer of sunshade net or black film from the top of the shed to heat up the sun after uncovering the grass, allowing heat to enter and block direct light. In the process of ventilation, there will be varying degrees of cooling, as long as the air volume is not too large, sometimes it can promote the development of mushroom and fruiting body. Conditional water temperature air conditioning can be installed, which can not only adjust the temperature effectively, but also make the air fresh because the equipment can blow circulating air to the mushroom shed, avoiding all kinds of problems caused by poor ventilation.

two。 Moderate moisturizing

The appropriate water holding capacity of the base material and the air humidity in the shed, collectively referred to as moisture, are generally regulated at 63% and 85%-95% respectively in production, so that the normal growth of hyphae and fruiting bodies can be ensured. Water is only one of the conditions for the growth of edible fungi, and it is not the only factor, especially during the period of fruiting body growth, proper ventilation is indispensable. The maintenance of ventilation and humidity is a pair of actual contradiction, ventilation is to reduce humidity. In fact, under certain conditions, such as noon in winter, due to the proper introduction of air higher than the temperature of the shed, the temperature of the shed can rise slightly, which will lead to the evaporation of water in the shed and increase the humidity at this time. The theoretical requirement of maintaining air humidity of about 90% does not require humidity to reach a constant state, just as changing temperature can stimulate mushroom production, a certain humidity difference sometimes can promote mushroom production, and in the case of relatively low humidity, it can also inhibit the survival and growth of some diseases, but the humidity difference should be controlled at 10% 20% according to different stages of the fruiting body in order to achieve ideal production results.