How to promote mycelial growth in spring oyster mushrooms? Sharing practical measures
Enoki mushrooms have a crisp, tender flesh, a delicious taste, a pleasant mouthfeel, and are extremely rich in nutrients, and they also have relatively good medical and health benefits. Enoki mushrooms are generally cultivated in autumn and winter, with fewer cultivated in summer. The Agricultural Bureau of Shizhong District, Zaozhuang City, used cold storage to control temperature for cultivating enoki mushrooms in summer, and succeeded, with each sq m of cold storage in July, August, September...
In spring, the outside temperature is relatively low, and oyster mushroom mycelium grows slowly, affecting yield and benefits. To solve this problem, the following measures should be taken:1. Increase lime: When mixing the substrate, increase the lime dosage to 5%. Make the mixed substrate have a pH between 8 and 9; this can inhibit the growth of contaminating bacteria and increase the mycelial growth rate.
2. Direct bagging: After the raw substrate is mixed, bag it directly without fermentation, so that the culture material inside the bag generates more heat, thereby speeding up the spawn-running rate.
3. Increase inoculation amount: When bagging, appropriately increase the amount of spawn used, changing three-layer inoculation to four-layer inoculation. The middle spawn blocks should also be appropriately enlarged, and the spawn blocks should be pressed tightly against the plastic bag, 4 to 5 blocks per ring. The spawn blocks at both ends of the bag can be slightly smaller, 6 to 7 blocks per end. After tying the opening, use a stick 10 to 12 mm in diameter to make 4 to 5 ventilation holes at the spawn areas on both ends of the bag, with each hole reaching half the length of the bag, so that mycelial growth inside the bag has enough oxygen. With this technique, the spawn-running time of the mushroom bag can be shortened from the previous 30 to 35 days to 15 to 20 days, and the mycelium is thick and white, with the contamination rate controllable below 2%.
4. Stacking for spawn running: After moving the mushroom bags into the mushroom shed, stack the bags end to end in layers 6 to 8 layers high, and cover with straw mats for insulation. Production practice has shown that the higher the bags are stacked and the closer the stack spacing, the higher the substrate stack temperature. Using this stacking method can raise the material temperature of the mushroom bags to 23 to 28 °C. Mycelium grows fastest at this temperature.
5. Increase shed temperature: Cover the mushroom shed with semi-drip-free film and straw mats. During the day, as long as there is sunlight, fully pull open the straw mats on the shed roof, and the sunlight alone can raise the temperature inside the shed to 10 to 23 °C.