Bailing mushroom culture material nutrition ratio should be reasonable

Bailing Mushroom is a mushroom that has developed in recent years. There are still many problems in cultivation techniques, especially since the yield has not been improved. According to the practice of cultivation of Pleurotus in recent years, the author found that the nutritional ratio of the culture materials plays a crucial role in the increase of the yield of Pleurotus.

The nutrients added in the culture medium should be mainly organic nutrition and supplemented with inorganic nutrition, which helps to enhance the stamina of the Bailing mushroom. Organic nutrients are generally based on bran, cornmeal, rice bran, etc., generally accounting for 20% to 30%, the amount can not be too large. Excessive organic nutrient content, one of the drawbacks is that the pollution rate is greatly increased, the second is the impact on the permeability of the culture material, resulting in slow growth of mycelium, delayed mushrooming. Inorganic nutrients are generally potassium dihydrogen phosphate, magnesium sulfate and the like, and generally account for 0.2% to 0.5%. Excessive inorganic nutrients will affect the hygroscopic ability of the hyphae.

It should be emphasized here that the increase in the yield of Pleurotus nebrodensis requires that, in addition to increasing the nutrient content of the culture material, the culture material must have a strong water absorption capacity. Conventional cotton seed hulls generally have relatively short lint, while short lint cotton seed hulls have weak water absorption capabilities. Cultivation of Pleurotus eryngii with this raw material results in insufficient moisture for fruit bodies during fruiting. Supply, it is difficult to guarantee the product quality and specifications of the sub-entities, let alone maintain high output. For this kind of situation, the culture materials can be properly adjusted, and 30%~50% of water-absorbing raw materials such as cotton fleece, corn heart and the like are added into the cotton shell, which enhances the water absorption capacity of the culture material. Cost savings can be described as double benefits. Cultivation of Pleurotus nebrodensis, the suitable moisture content of the culture material should be 60% to 65%. Specifically, the feed water ratio can be controlled from 1:1.5 to 1:1.6 before fermentation of the culture material. The ratio is controlled at about 1:1.3.

Practice has proved that the addition of a certain amount of lime in the culture medium can promote the rapid growth of Pleurotus eryngii mycelia, and the amount of lime added can be controlled at 2% to 5%, so that after the fermentation of the culture material is completed, the pH value can generally be maintained. In 8-9. No lime can be added, but the growth of mycelium will become slow, which will have a big impact on the rational arrangement of the mushrooming season.

In short, the reasonable ratio of culture materials is a very flexible issue. It should be scientifically adjusted according to local resources and try to increase the yield and commercial quality of Pleurotus ostreatus to a satisfactory level.

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