Detailed explanation of high-yield cultivation techniques for flower shiitake mushrooms, master the methods for higher yields

Flower shiitake mushrooms are produced when shiitake mushrooms are stimulated by certain specific environmental conditions. The natural occurrence rate is 4-5%. No pesticides, fertilizers or any hormones are used during production, and they are free from any pollution, so they can meet organic food standards. They are deeply welcomed by people at home and abroad for their rich nutrition and their effects in disease prevention, health promotion and delaying aging. Let's take a look at the high-yield cultivation techniques for flower shiitake mushrooms!

Mushroom shed construction

Choose a sunny, ventilated, flat terrain with dry soil and convenient material access to build an east-west oriented mushroom shed. The mushroom shed is 6 m long, 2.6 m wide and 2.4 m high. Three brick walls are built at both ends and in the middle of the shed, with the upper ends of the walls curved. A door 2 m high and 0.6 m wide is left in the middle, and a square exhaust hole with a side length of 12 cm is left above each door at both ends. Bamboo poles are used as layer racks, with 8 poles per layer, a layer spacing of 33 cm, and 6 layers in total, which can hold 500 fungus bags. The racks are covered with wide film.

Planting time

Flower shiitake mushrooms are divided into three types: spring planting, autumn planting and winter planting. Generally, they are planted in autumn. At this time, most of the shiitake mushrooms produced are flower shiitake mushrooms, with relatively good economic value. When the daily average temperature is 26-28°C, it can meet the temperature requirements of shiitake mushroom mycelium. After 60-70 days of growth, the mycelium can fill the bag, and after another 10-15 days, color conversion can be completed. Generally, fruiting begins in November. Before the Spring Festival, 2 flushes of flower shiitake mushrooms can be produced. After the Spring Festival, 1 flush of flower shiitake mushrooms, 1 flush of thick mushrooms and 1 flush of thin mushrooms can be produced.

Nutrient preparation

Use oak and fruit tree sawdust as the main materials, and crop straws (soybean stalks, cotton stalk wood), wheat bran and quicklime as auxiliary materials, of which sawdust is not less than 70% and fresh wheat bran is not less than 20%. When mixing materials, first pour the sawdust and other main materials into the mixing yard and pile them into a cone shape, then sprinkle fresh wheat bran and gypsum from the top of the pile to the surroundings of the pile, dry mix 2-3 times, and mix them evenly. Then mix soluble additives such as sugar and potassium dihydrogen phosphate in water, splash them into the dry materials in several batches and stir. The material mixing should achieve “two evennesses and one sufficiency”, that is, various dry materials are evenly mixed, the material is evenly dry and wet, and the raw materials fully absorb water.

Bagging and sterilization

Adopt large-bag cultivation. Cut low-pressure polyethylene plastic tube film 25 cm wide into 55 cm long sections, then tie one end tightly with cotton thread, and burn it with candle flame until it melts into a small ball shape. Put the culture material into the bag. The filling should be appropriately tight or loose. After filling, tie the opening with cotton thread and place it on the ground covered with gunny bags. The prepared culture material should be bagged within 6-8 hours. Put the filled material bags into a normal-pressure sterilization stove, and at the same time put the outer sleeve bag with one end sealed (bag length 58 cm, width 26 cm) and absorbent cotton into the steamer for sterilization. Leave a gap of 20-30 cm high in the stove, burn with high heat so that the temperature in the stove reaches 100°C within 4-6 hours, then maintain the temperature for 36 hours. After stopping the fire, open the stove, and when the material temperature drops to 70°C, take it out of the stove and transport it to the inoculation room.