What are the key management points for cultivating oyster mushrooms in winter

Cultivating oyster mushrooms in winter, when temperatures are low, the mycelium grows slowly, and once contamination occurs, it is very difficult to achieve successful cultivation.

The key points of winter management are:

(1) Select good varieties: winter temperatures are low, so low-temperature-type or wide-temperature-type varieties should be chosen. If medium- or high-temperature-type varieties are mistakenly used, management becomes difficult, and phenomena such as no mushroom production or deformed mushrooms may occur.

(2) Promote mycelial growth at suitable temperatures: create temperature conditions suitable for mycelial growth. Because winter cultivation generally uses open-style cultivation with unsterilized substrate, the substrate contains a high level of contaminating microorganisms, and contaminating microorganisms and oyster mushrooms have a mutually inhibitory (antagonistic) relationship during the growth process. Only by ensuring the suitable growth temperature for oyster mushrooms and making them grow vigorously can contaminating microorganisms be effectively inhibited, and can their own advantage be used to control contamination by foreign microorganisms.

(3) Ventilation and moisture retention: the winter climate is dry, so artificial spraying must be strengthened to maintain the relative air humidity required by the fruiting bodies. However, because the carbon dioxide produced by the respiration of the fungal bodies and the carbon dioxide produced by heating fires accumulate, carbon dioxide accumulation forms, affecting the development of oyster mushrooms. To resolve the contradiction between heat preservation and ventilation, appropriate ventilation can be carried out at noon each day together with spraying, ensuring both fresh air and stable relative humidity.

(4) Scientific spraying: during the period of fruiting body growth and development, it is strictly forbidden to spray water directly onto the fruiting bodies. Warm water can be sprayed 2-3 times per day. Grasp the principle of "two more and two less", namely spray more when the mushrooms are large and spray less when the mushrooms are small; spray more on sunny days and spray less on cloudy and rainy days. To increase relative air humidity, a water pot can be placed on the stove, using water vapor to satisfy the relative humidity requirement, or wet cloth or strips of wet cloth can be hung indoors to increase ?relative humidity?