Bailing mushroom cultivation raw material ratio should be reasonable

Bailing Mushroom is a mushroom that has developed in recent years. Because of its short development history, there are still many problems in cultivation techniques. In particular, the total output has not been improved, and some mushroom farmers have cultivated Pleurotus citrinopileatus. Bioconversion rate is less than 20%, that is, in the case of higher prices, the economic benefits are also very general. According to the author's practice of cultivating Pleurotus in recent years, the following analysis of the nutritional ratio of Pleurotus nebrodensis was provided for reference.

The reasonable ratio of nutrition plays a crucial role in the yield of Pleurotus eryngii. The Shouguang Research Institute of Edible Fungi in 2002 and 2003 each took 200,000 bags of raw materials, using cottonseed husks as the main ingredient, and adopting the formula of adding 20% ​​of wheat bran and about 8% of cornmeal. The bioconversion rate reached more than 60%; in 2005 A pure cottonseed husk was used to plant Bailing Mushrooms, feeding 150,000 bags, and the bioconversion rate was only 20 to 30%. Therefore, the author gives a detailed introduction to this issue:

The nutrients added should be based on organic nutrition and supplemented with inorganic nutrition, which is very helpful for enhancing the stamina of Pleurotus eryngii. Organic nutrients are generally based on bran, cornmeal, rice bran, etc. Generally, the added amount is 20 to 30%. The added amount is not too large, and the organic nutrient content is too large. One of the drawbacks is that the pollution rate is greatly increased, and the second is the impact. Breathability of culture materials, resulting in slow growth of mycelium, delayed mushrooming season; inorganic nutrition is generally potassium dihydrogen phosphate, magnesium sulfate, etc., generally added in an amount of 0.2 to 0.5%, too much will affect the hygroscopic water absorption capacity.

Here, it should be emphasized that the increase in the total yield of Pleurotus ostreatus is an important aspect in increasing the nutrient content of culture materials. The second aspect is to ensure that culture materials have strong water absorption capacity. Current conventional cottonseed hulls are generally short in cotton velvet, but short cotton husks are not likely to add a lot of water. Using this raw material to cultivate Bailing Mushrooms, during fruiting, the fruiting bodies will not be fully available. The moisture supply, so that the fruiting properties and growth specifications of the fruiting body are difficult to guarantee, let alone maintain a high yield. For this kind of situation, we can adjust the formula appropriately, and add 30-50% of raw materials with strong water-absorption capacity such as cotton wool, corn cob, etc. into the cottonseed husk, which not only improves the water absorption of the culture material, but also saves The cost can be described as double benefit. For planting Pleurotus eryngii, the suitable moisture content of raw materials should be 60 to 65%. Specifically, the ratio of material to water can be controlled to 1:1.5 to 1.6 before the fermentation of raw materials, and the ratio of material to water can be controlled to be about 1:1.3 before inoculation. . As the cotton linters used in the wastes of cotton mills and cotton mills, it has been used very well in recent years. The experimental base of the Institute of Edible Fungi, Shouguang City, produced white spirits in 2005 using half of the cotton and half of the velvet. Mushrooms have achieved very good results, the highest bioconversion rate has reached more than 80%, and has created very good economic benefits.

Practice has proved that adding a certain amount of lime in the formula can promote the rapid growth of the mycelia, and the amount of lime added can be controlled to 2 to 5%. After the fermentation of the culture material is completed, the pH can generally be maintained at about 8 to 9. It is also possible not to add lime, but the growth of mycelium will become slow, which will have a greater impact on the rational arrangement of the mushrooming season.

In short, the rational formulation of culture materials is a very flexible issue. We should, based on local resources and scientific adjustments, try to increase the yield and commercial quality of Pleurotus ostreatus to our level of satisfaction.

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