Spring management of bag-cultivated edible mushrooms in solar greenhouse plastic tunnels

As spring arrives, temperatures rise fairly quickly but remain unstable. Mushroom growers who cultivate edible mushrooms such as oyster mushrooms and shiitake in solar greenhouse plastic tunnels should, in light of the unstable spring weather, listen to the weather forecast every day and adjust cultivation and management measures at any time according to weather changes.

1. Temperature management

In normal clear weather, when the air temperature is relatively high, the temperature inside the tunnel will be even higher. To keep the temperature inside the tunnel relatively low so that spring mushrooms grow with good quality, change from the winter practice of raising temperature and retaining moisture to lowering temperature and retaining moisture, with the following specific measures: during the day when sunlight is strong, such as from about 8-9 am to about 5 pm, cover the top of the tunnel with straw curtains; roll up the straw curtains in the early morning, evening or at night, and spray water on the tunnel floor to lower the temperature. On cloudy and rainy days or during temperature drops, take heat-preservation measures.

2. Moisture management

For mushroom bags that have already produced 2-3 flushes of mushrooms through autumn and winter, the water contained in the bags has been greatly consumed and the bags have become noticeably lighter, so water should be replenished in good time. There are many methods of replenishing water; a relatively simple method is to use a water injector to inject water into the bags. After water injection, the mycelium in the bags absorbs water and resumes growth, which releases heat and raises the bag temperature, and the temperature inside the tunnel rises accordingly. Cooling measures such as rolling up the curtains at night should be taken in good time to keep the temperature inside the tunnel relatively low, avoiding contamination of the bags by foreign microorganisms caused by high temperature inside the tunnel after water injection.

3. Ventilation management

After the third flush of mushrooms, the nutrients in the bags have been greatly consumed and mushroom production decreases noticeably, so the amount of oxygen needed is relatively reduced. Ventilate once in the early morning and once in the evening, which can be done together with spraying water; there is no need to strengthen ventilation.

4. Pest control

As the air temperature rises, pests begin to grow and reproduce, so preventive measures should be taken in good time to avoid pest outbreaks. All vents, doors and windows should be fitted with microporous nylon gauze to prevent mosquitoes and flies from flying in. Once an outbreak occurs, be cautious when using pesticides; use high-efficiency, low-toxicity pesticides, and spray the bags after mushroom harvesting; never spray directly onto the fruiting bodies.

5. Emergency measures in case of ice and snow disasters

1. Reinforce the supports in good time to prevent the tunnel roof from collapsing

2. If there is partial collapse, move the mushroom bags to a safe place

3. If the entire tunnel roof collapses, clear the debris, rearrange the mushroom bags in rows, and cover them well with covering material. After the severe weather passes, rebuild the tunnel, move the mushroom bags in, and continue producing mushrooms.

4. If the disaster is severe and the cultivation scale is relatively large, making emergency repairs difficult, completely clear the tunnel.