Cultivation Technology of Pleurotus ostreatus in bags

Pleurotus ostreatus is a widely cultivated edible fungus, which belongs to Pleurotus ostreatus of Pleurotus ostreatus, basidiomycetes, Pleurotus ostreatus, basidiospores, rich nutrients, let's take a look at the cultivation technology of bagged Pleurotus ostreatus.

Advantages of bag planting

Bagged Pleurotus ostreatus is beneficial to control the harm of miscellaneous bacteria and pests, has a high success rate, can make full use of space, and occupies a small area (1500-2000 bags can be cultivated in a culture room of 15-18 square meters). Moreover, the production cycle is shortened, the accumulation of bacteria is used to increase the temperature of the material, speed up the occurrence of bacteria and shorten the mycelial growth period. At the same time, it is convenient for mobile management, can make full use of the site, helps to control temperature, maintain humidity, produce mushrooms neatly, good shape and stable yield.

Culture material formula

There are many sources of Pleurotus ostreatus culture materials, such as cotton husk, sawdust, rice straw, leaves, and other crops and vegetable stalks can be used to cultivate Pleurotus ostreatus, usually cotton husk and rice straw as the main materials. ① formula 1: cotton husk 98%, lime 1%, gypsum powder 1% PH 6.5. ② formula 2: cotton husk 60%, rice straw powder 33%, lime powder 1%, gypsum powder 1%, PH 6.5. ③ formula 3: Rice straw powder 80%, corn meal or rice bran 18%, calcium superphosphate 1%, lime powder 1%, PH 6.5.

Mixing method

After weighing the raw materials and drugs according to the formula, place them in a clean room or on an open space, add water according to the dry material water for 1. 3 to 1.8, and mix well with nail palladium or shovel. After mixing, the culture material is squeezed by hand, and if there is water exudating between the fingers but not dripping, it shows that the water content is appropriate.

Bagging sterilization

The plastic bag is made of low-pressure polyethylene tube film with a width of 22cm and 25cm, cut into a plastic cylinder of about 40cm and 50cm, put the prepared culture material into the plastic cylinder, press it, put the plastic neck ring or fiber band ring on both ends, turn the plastic tube mouth down, move in from the side near the center along the outside of the ring, cover the ring with Kraft paper or newspaper, and hoop it with a rubber band. Put the material bag into a big soil steamer to cook and disinfect, put several bags together, and wait for the atmosphere (100 ℃) to maintain for 8 hours.

Cooling inoculation

Put the high-temperature sterilized material bag in a clean, dry and ventilated place free of dust and mosquitoes to cool, wait for the material to cool to about 28 ℃, and then start inoculating. When inoculating, take bacteria from the bottle with tweezers and connect them directly into the bag. 3 broad bean-sized bacteria are inserted into each mouth. Tweezers and other tools used for inoculation should be disinfected in advance, and can be washed with soap, alcohol or potassium permanganate. Inoculation action should be fast, do not talk during inoculation, bacteria should be selected strong, short age, no miscellaneous bacteria infection, from all aspects to prevent the invasion of miscellaneous bacteria.

Mycelial culture

After plastic bag inoculation, put the material bag in a clean and ventilated room to stack bacteria, which can be stacked in large piles in winter and early spring, arranged in two rows, with a heap height of about 1 meter, covered with film, grass curtains and other thermal insulation materials, and can only be arranged in a single row at the end of autumn and spring. It is appropriate to have three to four layers. The material temperature should be paid attention to at any time in the process of culture. if the temperature exceeds 30 ℃, it is necessary to turn the heap in time to dissipate heat, and change the position of the upper and lower layers with the middle material bag to prevent the material temperature from being too high to burn out the mycelium and promote the mycelium growth. After 20 to 30 days, the mycelium can grow full of the bag.

Growth management

After the mycelium grows into the bag, it should be moved out of the mushroom in time, and the bags should be arranged in a single row, with the same layer of 5-7 layers, leaving a distance of 70-80 cm wide between rows, which is convenient for managers to operate. At this time, the mushroom should maintain sufficient air and corresponding wet temperature to promote the formation and growth of fruiting body. It is required to ventilate for 1-2 hours a day, keep the indoor air fresh, and improve the air humidity by watering the ground and spraying to the bag and air. When the fruiting body is formed and grows out of the bag, spray the mushroom body once or twice a day, spray more in sunny days, less or no spray in rainy days.

Timely harvest

Pleurotus ostreatus for fresh food, timely harvest is not only soft, delicious and delicious, but also high yield. When the color of the cap changes from dark to light, and there is a white antler in the concave part, it is the right time to harvest, or when the mushroom body grows to medium well. After harvest, the mushroom noodles should be cleaned up in time, and the dead and rotten mushrooms should be removed in time. After the mycelium has been recuperated for a period of time, the mushrooms can grow and batch, generally, it can be picked 3 times or 4 times.