Key technical measures for oyster mushroom production in midsummer

Oyster mushrooms are usually produced in spring, autumn and winter, but now there have also been breakthroughs in the technology for producing oyster mushrooms in midsummer. The main measures are briefly described as follows:

The oyster mushroom spawn used in midsummer must be able to resist high temperatures, resist contaminating microorganisms and resist pests, and must colonize quickly and mature early. Among them, Chunqiu Tekang can resist high temperatures of 35°C; 96 Tekang and oyster mushroom 601 can resist high temperatures of 32°C; Shengming No. 1 can resist high temperatures of 33°C; Huazhong Yaping can resist high temperatures of 35°C.

The mushroom-growing site must have convenient drainage and irrigation, fertile soil, a shade shed, and a clean environment. You may choose 97 kg of cottonseed hulls, 1 kg of gypsum powder, 1.5 kg of lime powder, and 100 g of 50% carbendazim, add 130 kg of water, and mix evenly to prepare the bag substrate. Then put it into special polyethylene tube bags 35-40 cm long. At both ends of the bag, place ventilation plugs made of crop straw. Mix 15 kg of spawn into 100 kg of culture substrate, and a total of 55 bags can be filled. The culture substrate in each bag is inoculated with spawn from both ends. A hollow wooden stick should also be placed in the ventilation plug as an air hole. After tying both ends of the substrate bag, use a wooden stick 1.5 cm in diameter to punch a hole vertically through the bottom in the center of the substrate bag to allow gas circulation.

Lay a strip of plastic film on the ground inside the shed, place 3 layers of mushroom bags on the film, with a distance of 4-5 cm between two bags, and place two bamboo poles or wooden sticks between each layer to dissipate heat and lower the temperature. Every 3-5 days, turn the mushroom bags and change their direction so that they evenly receive temperature and humidity regulation and produce mushrooms uniformly. You can also dig pits in the open field and bury the bags to promote mycelial growth. That is, choose a relatively shady place and dig trenches 60-70 cm wide and 45-50 cm deep, with the length determined by the number of mushroom bags. First use pesticides such as carbofuran to kill underground pests in the pit. Then use wooden stakes about 5 cm in diameter to punch two holes side by side, with a hole depth of 10 cm. Place straw ventilation plugs in the holes, place 2 rows of mushroom bags above the holes, and after the pit is filled with mushroom bags, immediately fill the gaps with soil. The soil filled in the pit should exceed the ground level, and straw should then be covered over the soil. Open drainage ditches around the pit. After about half a month, when the mycelium has fully colonized, place them indoors for temperature-controlled management, and they can then produce mushrooms normally.