1. The preparation of compost: choose fresh, dry soybean stalks, expose them in the blazing sun for 2 to 3 days, smash by pulverizer with the sieve size of 1cm, the formula is: soybean stalk powder 78kg, wheat bran 10kg, bean cake 5kg, gypsum 1kg, superphosphate 3.5kg, urea 0.5kg, corncob powder 2kg, water 130kg. After mixing evenly, people could conduct heap fermentation, it can be used in cultivation after turning piles for 3 times.
2. The preparation of nutrient soil: choose fertile garden soil 65kg, sifted slag 20kg, broad-leaved tree sawdust or stalk powder 10kg, lime 3kg, superphosphate 1.5kg, urea 0.5kg. Firstly mix the first three materials evenly, then respectively dissolve lime, phosphatic fertilizer and nitrogenous fertilizer in water, pour in dried material and adjust the humidity by several times.
3. Bagging and inoculation: scatter fermented compost and cool to under 30 degrees, put into the plastic bag of 22cm to 25cm*50cm, guarantee two layers of material and three layers of strain, use strain to cover the surface of material on both sides of bag. The dosage of inoculation is that spread 15kg of strain in each 100kg of dried material , then tie the mouth tightly.
4. The management of fungi sack: 10 to 15 days after sowing, spawns will be fully grown, on that occasion, people could use wooden needle to prick 8 to 10 micropores to supplement oxygen that is needed in the growth period of spawn and accelerate the speed of growing. After about 20 to 25 days, spawns will be fully grown in fungi sack.
5. Remove fungi sack and build walls: when finding that spawns are fully grown and spawns have entered into reproductive stage, people could wait for 7 to 10 days and unfasten both sides. Turn up film of fungus tubes from one side to another half of side, rank ringent two sides into two lines, make a gap of 3 to 4cm between each line, use nutrient soil to fill till the depth above fungus sacks is 1cm to 2cm, then array the second layer of fungus sacks and make sure the situation of one layer of fungus sack and one layer of soil. The total layers are from 6 to 8. The uppermost layer needs 8 to 10cm depth of earthing and need to be made into groove with amplitude type. People could plant garlic in the groove to prevent soil hardening.
6. Fruiting management: after building walls, people could wait for 5 or days and then spray water and induce mushrooms. the biological efficiency of the first flush of mushroom is in about 100%. After picking, people could combine with irrigation and supplement nutrient solution in groove, put 1kg of superphosphate and 0.5kg of urea into each 100kg of water, through this way, people could harvest 4 to 5 flushes of mushroom.
7. Demolish walls and conduct ridge cultivation: after fruiting 4 flushes of mushroom, fungus walls can be demolished. People could peel off plastic film, put into cold frame and make sure that the face that hasn’t get fruited is upward. people could fill the gap in mushroom sticks with fertile soil, irrigate much water and soak mushroom sticks, then cover film. Through this method, people could harvest extra 3 to 4 flushes of mushroom and achieve high yield.
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