Detailed Explanation of the Key Points of the Covered Cultivation Technique for Shiitake Mushrooms
First, covered cultivation of shiitake mushrooms adopts techniques such as natural color change, open fruiting, widening the wet-dry difference, and water management with alternating wet and dry conditions, which can make the shiitake mushroom bodies large, the flesh thick, and the quantity of flower shiitake mushrooms abundant. Second, compared with the conventional method, the yield can be increased by 30% to 40%. Third, after the substrate sticks are removed from the bags and covered with soil, they can change color naturally and are not easily infected. ...
First, covered cultivation of shiitake mushrooms adopts techniques such as natural color change, open fruiting, widening the wet-dry difference, and water management with alternating wet and dry conditions, which can make the shiitake mushroom bodies large, the flesh thick, and the quantity of flower shiitake mushrooms abundant. Second, compared with the conventional method, the yield can be increased by 30% to 40%. Third, after the substrate sticks are removed from the bags and covered with soil, they can change color naturally and are not easily infected. Fourth, after the substrate sticks are covered with soil, they can fully utilize and absorb the moisture and nutrients in the soil, which can save the cumbersome process of soaking the substrate sticks to replenish water after each flush of mushrooms. The specific method is as follows: the bed width is 80 to 100 cm, the depth is 20 cm, and the length is unlimited. For each kilogram of soil used for covering, mix 1.25 g of 80% dichlorvos emulsifiable concentrate, 10 g of 50% phoxim emulsifiable concentrate, 1.7 g of potassium permanganate, and 5 g of formaldehyde, spray once, cover with plastic film, and fumigate in a sealed manner for 24 hours to kill insects and sterilize before use. Remove the bags from substrate sticks whose mycelium has reached physiological maturity, lay them flat close together in the bed, cover with soil, then cover with wheat (rice) straw and spray with water to moisten. After 7 to 10 days, remove the surface layer of covering soil to expose the surface of the substrate sticks, water once heavily, and thereafter use water management with alternating wet and dry conditions. After a large number of mushroom buds have formed, water heavily once again so that the soil layer absorbs water thoroughly, and do not spray water afterward. After harvesting one flush of mushrooms, turn the substrate sticks over, cover with soil again, and manage them according to the above method.