Preparation of culture material for Auricularia auricula

Auricularia auricula, also known as Auricularia auricula, belongs to Auricularia auricula family. Because its bacteria are nutritious and rich in protein, fat, vitamin B2 and iron, it is known as "meat in vegetarian". Auricularia auricula not only has the functions of strengthening essence, tonifying the kidney, promoting blood circulation and strengthening the body, but also is commonly used in the treatment of rheumatic waist and leg pain, hand and foot numbness and cramps, hemorrhoid bleeding, tuberculosis, postpartum weakness and other diseases. it has a certain preventive effect on heart and coronary artery disease.

Auricularia auricula is a medium temperature fungus, the mycelium growth temperature is 10: 35 ℃, the optimum temperature is 22: 28 ℃, the fruiting body growth temperature is 15: 30 ℃, and the optimum growth temperature is 20: 25 ℃. Bag inoculation was made in the Yellow River Basin from early February to early March. The varieties with exuberant mycelium vitality, concentrated ear tooth formation, strong stress resistance, high ear yield and good quality were selected.

Formulation of culture materials:

① straw culture material. Rice straw 75%, rice bran 22.5%, gypsum 1%, calcium superphosphate 1%, urea 0.5%.

② soybean straw culture material. Bean straw powder 88%, wheat bran 10%, gypsum powder 1%, calcium superphosphate 1%.

③ wheat straw culture material. Wheat straw 80%, wheat bran or rice bran 18%, calcium superphosphate 1%, gypsum 1%.

④ cottonseed hull culture material. Cottonseed hull 90%, wheat bran or rice bran 8%, gypsum 1%, calcium superphosphate 1%. The materials should be dry, fresh and mildew-free. The rice straw is cut into 2 to 3 cm long, soaked in 1.5% lime water for 12 hours, picked up and washed with clean water, the pH value is 7; bean straw and wheat straw should be crushed. After the culture material is prepared, the water content is 55%-60%, and the pH value is about 8.