What conditions do edible fungi need to grow?

1. What nutrients are needed for the growth of edible fungi? Carbon, nitrogen, mineral elements and auxin are essential nutrients for the growth of edible fungi. Wood and sawdust are rich in cellulose, hemicellulose and lignin, which are carbon nutrients needed by edible fungi. Wheat bran, rice bran, bean cake powder, corn flour and urea are rich in nitrogen, which is the nitrogen nutrition needed by edible fungi.

Pay attention to the ratio of carbon to nitrogen when preparing culture materials. Edible fungi also need trace mineral elements such as phosphorus, calcium, magnesium, potassium, zinc and molybdenum, which generally exist in cultivation materials. In addition, the growth and development of edible fungi need a certain amount of auxin, such as vitamin B 1, B2, B6, etc. , which is rich in potatoes, rice bran and other things.

2. Does the growth of edible fungi need suitable temperature? It must be noted that different edible fungi need different temperatures, and different varieties of the same edible fungi need different temperatures. Moreover, the temperature required for different growth stages of a variety is also different.

3. Does the growth of edible fungi need proper moisture? The water content of the culture medium should be 60% ~ 70%. The relative humidity of air during mycelium culture is not high, mainly in the high humidity environment of 80% ~ 90% when mushrooms are produced. Therefore, it is necessary to pay attention to frequent water spraying during the fruiting period to increase the relative humidity of the air in the cultivation area and meet the needs of the growth of fruiting bodies.

4. The cultivation place requires fresh air and sufficient oxygen, which is an important factor to obtain high yield. Therefore, we should always pay attention to the ventilation of the mushroom house and keep the air fresh. We must pay attention to the temperature change during ventilation and its influence on the relative humidity of the air, manage it scientifically, coordinate and unify it, and never neglect one thing and lose another.

5. Edible fungi have special requirements for light. Most of them don't need light during spawning and are suitable for growing in the dark, but they need some scattered light during fruiting. In this case, if there is no proper amount of scattered light, mushrooms can't grow or deformed mushrooms will appear. This phenomenon mostly occurs in caves, bomb shelters, food pits and so on.

Extended data:

Edible value of edible fungi

Edible fungi are rich in protein and amino acids, the content of which is several times to dozens of times that of ordinary vegetables and fruits. For example, the protein content of fresh mushrooms is 1.5-3.5%, which is three times that of Chinese cabbage, six times that of radish and 17 times that of apples. The protein content of 1 kg dried mushrooms is equivalent to the protein content of 2 kg lean meat, 3 kg eggs or 12 kg milk.

Lysine in edible fungi is very rich, including 18 amino acids that constitute protein and 8 trace elements necessary for human body. The content of lysine in cereal is low, and the content in edible fungi is also quite rich.

The fat content of edible fungi is very low, accounting for about 0.2%-3.6% of the weight of dried products, of which 74%-83% are unsaturated fatty acids beneficial to human health. Edible fungi also contain vitamins. The VB 1 and V 12 in edible fungi are higher than those in meat. The Vc content of Volvariella volvacea is 1.2 ~ 2.8 times that of pepper, 2 ~ 5 times that of pomelo and orange, and 0/7 times that of Lentinus edodes.

The original Vd content of Lentinus edodes is as high as 128 international unit, which is 8 times that of laver, 7 times that of sweet potato and 2 1 times that of soybean. VD can be transformed into VD by ultraviolet irradiation, which promotes the absorption of calcium. Edible fungi are also rich in various mineral elements: phosphorus, potassium, sodium, calcium, iron, zinc, magnesium, manganese and other trace elements. Tremella contains more phosphorus, which helps to restore and improve brain function. Mushrooms and auricularia auricula are high in iron. The potassium in the ash of shiitake mushroom accounts for 65%, which is a high-grade food in alkaline food and can neutralize the acid produced by meat food.

Edible fungi are not only delicious, but also nutritious, and are often called healthy food. For example, mushrooms not only contain a variety of essential amino acids, but also have the functions of lowering blood cholesterol and treating hypertension. It is also found that mushrooms, Flammulina velutipes and Hericium erinaceus contain substances that enhance the anti-cancer ability of human body.

References:

Baidu encyclopedia-edible fungi

People's Network-Edible Fungi "Restores" the Great Agricultural Ecology