Prevention and control of abnormal mushrooms in off-season cultivation of Lentinus edodes

In the out-of-season cultivation of Lentinus edodes, deformed mushrooms are often produced because the production conditions are not in place, which affects the commodity quality and value of mushroom products and greatly reduces the production efficiency. The main manifestations and control measures of deformed mushrooms are as follows:

1. The cap is small and thin. It shows that the cap is thin and small, even if the mushroom is older, it can not grow up, and there is no special flavor of Lentinus edodes when eating fresh. Prevention and control measures: if there is no bacterial bag that changes color, we must regulate and control the conditions to change color; if the base material is not nutritious enough, it can be properly supplemented when soaking the bacterial bag, and the method of "foliar fertilization" can also be adopted. for example, spraying three-dimensional nutritional essence of edible fungi can effectively thicken the cover thickness; if the summer temperature is higher, effective cooling measures should be taken, if the "water-cooled air conditioner" is used, the effect is better.

two。 Cover lampshade shape. The bacterial cover is in the shape of a pointed lampshade and is obviously thin, resulting in a serious decline in the quality of the goods. The main reason is the same as above. Therefore, prevention and control can be carried out with reference to the above.

3. The fungus cap is wavy. The edge of the cap showed a regular wave shape, and it was obviously thinner and more brittle. When the wavy shape mainly accepts a large temperature difference with the young mushroom development stage, and the humidity of the environment also changes greatly, especially when the heavy water is sprayed directly on the fungus cap, there will soon be a large airflow, which makes the tissue development of the fungus cap abnormal. Control measures: after the occurrence of mushroom buds, a relatively peaceful temperature and humidity should be maintained, especially in out-of-season cultivation in summer, the temperature of the mushroom shed is often the basic condition for the normal development of fruiting bodies.

4. The bacterial cap is not good. The specific performance of the cap is twisted, or narrow, or triangular, and so on, in short, not round is its main feature. The main reason is that the young bud stage did not cut the film in time, so that the cap was directly pushed against the film to accept certain friction, or the mushroom buds occurred more often and did not be thinned in time, and the cap was squeezed together after growing to the young bud stage. As long as the cap is squeezed when it is young, it will never be round again. Prevention and cure: cut the film in time and carry on the bud thinning treatment.

5. The stalk is hollow. The stalk is slender and hollow, which leads to the small cap, which is mainly due to the low moisture content of the base material and the low humidity in the space. Prevention and control measures: after each harvest, the bubble bag treatment should be carried out. Generally soaking for 24 hours can restore the original weight and keep the air humidity in the mushroom shed above 85%.

6. The stalk grows out of the crack. When the moisture content of the bacterial bag is too low, the base material cracks, and after forming a long and narrow crack, some fruiting bodies grow out of the crack, and some of them are not even drilled completely, and the bacterial cap grows in the crack, and finally can not realize its commercial value. The way to prevent it is to adhere to the bacterial bag soaking treatment to prevent it from forming cracks.

7. The stalk is twisted. When the humidity of the air in the mushroom shed is low, the light is strong or the light angle changes too frequently, this phenomenon is easy to occur. The way to prevent it is to maintain a relatively stable air humidity and stable light, which is generally required to have a scattered light of 1000 lux.

8. Candle mushroom. Candle mushroom is characterized by the bare stalk, there is no normal cap tissue, shaped like a candle. The causes are as follows: one is that the cap tissue is damaged in the mushroom bud stage, and the other is the high concentration of carbon dioxide in the greenhouse. Preventive measures: cut the film in time; be careful not to hurt the buds when thinning buds; adhere to better ventilation to maintain fresh air conditions in the shed.