New technique of cultivating Pleurotus ostreatus with sweet potato vine

Sweet potato, also known as sweet potato and red potato, contains 8.1% crude protein, 1% crude fat, 28.5% crude fiber, 1.55% calcium, 0.11% phosphorus and trace amounts of lysine, methionine, isoleucine and so on. Sweet potato vine can be used to cultivate Pleurotus ostreatus by adding appropriate auxiliary materials, which is a good raw material for high quality and high yield. The specific practices are as follows.

1. Raw material handling. After harvesting and digging sweet potatoes, move the vines to the ground to make them 2-3 cm long, dry them in the sun, and pack them in woven bags.

two。 Culture material formula. Soak the whole bag of dried vines with 100 kg of water and 2 kg of lime and press them with stones. Soak for 1 day, remove and drain. Every 100 kg dry vine, add wheat bran or fine rice bran 10 kg, calcium superphosphate 2 kg, gypsum powder 7.5 kg, urea 0.5 kg, carbendazim 100 g. Dissolve carbendazim and fertilizer in water, mix gypsum powder and wheat bran well, mix with the above solution, finally mix with sweet potato vines, ferment on the heap and turn the heap twice.

3. Bagged and vaccinated. First cut the plastic tube film or plastic film cylinder material with a width of 80cm and 100cm into 100cm long and tie one end tightly, or in the form of a corner bag, fold in half on each side, and the fold is fixed with a pin. Put the large bag on the sterilized flat ground, sprinkle a small amount of bacteria evenly on the bottom layer, and then load the fermentation material cooled to room temperature 20-25 cm thick. Gently lift the whole bag so that the plastic around the bottom mouth is stretched, and then on the ground, press the culture material along the bag wall to make it round. Continue to load the culture material, every 25 cm, press until the bag can be closed from ear to ear, and flatten the surface. Then punch a hole every 5cm to 8cm with a wooden cone rod or steel bar with a diameter of 2cm or 3cm (the tip of the cone should be flat). The hole goes deep into the bottom of the bag (do not pierce the bottom film), put bacteria in the hole, fill and press it. After each hole is full of bacteria, punch another hole until the whole bag is finished, sprinkle some bacteria evenly on the surface and gently flatten it. Finally, the mouth of the bag is folded diagonally and fixed with a pin. Sow seeds one by one, each two bags side by side, with a spacing of 40 cm to 50 cm.

4. Germ management. The hyphae began to germinate 2-3 days after sowing and ventilated for 30 minutes every morning after 5-7 days. After 15 days, open the doors and windows and ventilate for 0.5 hours. After budding, open the mouth of the bag, spray on the wall and ground, increase the air relative humidity to 85%-90%, strengthen ventilation and promote the occurrence of mushroom buds.

5. Pick mushrooms at the right time. After 7 or 8 days of budding, the first tide of mushrooms can be harvested. Clean the noodles after harvesting and use a stick with a diameter of 2 centimeters to punch a hole 10 to 15 centimeters deep on the surface of the bacterial bag every 10 centimeters to irrigate nutritious water. After the surface is dry, seal the mouth of the bag. After that, the management is the same as that of Pleurotus ostreatus, except that the variety of nutrient solution used should be rotated, and a total of 3-4 tide mushrooms can be harvested.

6. Follow-up cultivation. After the harvest of Pleurotus ostreatus, in order to tap the production potential of the culture material and improve the production efficiency, the following methods can be used to make it continue to produce mushrooms. ① U-turn method: change the position of the bottom of the bag with the noodle, open the mouth of the bag, punch the hole, fill the nutrient solution, manage the mushroom production, and collect 2-3 tide mushrooms. ② layer shelf method: a simple layer shelf is made of bamboo poles or fine sandalwood strips, with 2 raw materials for each layer, and the bags after taking off the bags are placed on the top. The bags are 10-15 cm apart, with a total of 2-3 layers, which can produce mushrooms all over the bag. ③ truncated cylinder covering method: move the bacterial bag outdoors, remove the thin film tube, use a sharp knife or steel wire saw blade, cut it into 3 sections, discharge it on the border bed, fill the gap with fertilizer soil, and cover the surface with soil 1cm to 2cm thick.

7. Waste utilization. After collecting the mushrooms, the waste of the bacterial bed is dried and crushed, which can be used as a feed supplement.