Five-character Classic of Water Management of Flammulina velutipes

The requirement of cultivation and management of Flammulina velutipes is higher, especially the requirement of water in the stage of fruiting body development. Now the five words of water management are introduced as follows for growers' reference.

Ichiguro. When the mycelium is sent to the bottom of the bag, immediately open the bag to scratch the bacteria, peel off the old bacteria, cover with wet newspaper or plastic film to moisturize and bud. If the newspaper is covered, water should be sprayed a small number of times (3 to 4 times a day) to keep the newspaper moist; if covered with plastic film, water can be sprayed to the ground and space to keep the air humidity at about 90%. In this period, the window was opened and ventilated once a day, and the room temperature was controlled at 10 ℃ ~ 14 ℃. A large number of mushroom buds occurred after 5-7 days.

Second drop. When the mushroom bud grows to 1cm or 2cm, it enters the growth inhibition period. At this time to reduce or stop spraying water, reduce humidity. Open the doors and windows at night for 3-5 days, let the cold air cool and dissipate humidity, lower the room temperature to less than 8 ℃ (4 ℃ ~ 5 ℃ is the best), and the humidity is about 75%, so that the fruiting body is restrained and the growth is neat and sturdy.

Three urges. The fruiting body grows to 3-4 cm long, and after entering the extension stage, it is sprayed 4 times a day for 5 times. The amount of spraying water increases with the growth of mushrooms, and the air humidity is about 90% (that is, fine water droplets are attached to the bag wall at the base of the fruiting body) to promote the rapid growth of the fruiting body. At the same time, proper ventilation and alternation of dry and wet were adopted to inhibit the increase of mushroom cover and promote the elongation of mushroom stalk. The amount of spraying water at this stage should be determined according to the weather, spraying more in sunny days and less in rainy days, so as to prevent root rot, brown spot and mushroom body from reducing quality due to excessive use of water. Do not spray water on the mushroom cover, find that the newspaper is damaged and replace it in time, and pour out the stagnant water on the newspaper immediately to prevent the mushroom body from coming into contact with water droplets to produce black spots and affect the appearance of the goods.

Four supplements. After the harvest of Touchao mushroom, the water content of mushroom decreased by 20%-30%, and that of Erchao mushroom decreased by 30%-50% after harvest. Therefore, after the first and second tide mushrooms are harvested, it is necessary to spray water into the bacteria bag immediately after scratching. The method is to spray water directly into the bag 2 or 3 times a day for 2 to 3 consecutive days, and each time the surface of the bacterial column should be moist, so as not to make the bag accumulate water. In order to increase the yield, a small amount of urea, sugar and potassium dihydrogen phosphate can be added to the water to supplement nutrients.

Five dips. After the three tide mushrooms were harvested, the water content of the bacteria column has been reduced to less than 50%. At this time, the plastic bag can be removed, and the bacteria column can be soaked in the pool water. When the bacteria column absorbs water and returns to its original weight when opening the bag, it can be slightly dried and put into the bag. The bag can also be soaked with water directly, and the excess water in the bag can be cleaned after the bacteria column absorbs enough water. After replenishing the water, the bacterial bag will be rearranged on the bedstead, and the wet newspaper will be managed as usual, so that two tide mushrooms can be picked.

Dong Ruozheng, Agricultural Bureau of Pingxiang County