Method for preparing mushroom culture substrate by using compressed straws

Abstract

The invention discloses a method for preparing a mushroom culture substrate by using compressed straws and provides a mushroom culture medium which utilizes crop compressed straws to replace parts of sawdust in the traditional mushroom culture medium. The method comprises the following steps of: crushing crop straws by sections into compressed straw grains and adding water to immerse the compressed straws; uniformly mixing raw materials of the culture medium of rough sawdust, fine sawdust, the compressed straw grains, wheat bran, gypsum and water according to a ratio; and packaging treated mixed culture materials into bags and sterilizing at high pressure or normal pressure, so as to obtain the mushroom culture medium. According to the method disclosed by the invention, the crop compressed straws are utilized to replace parts of the sawdust in the traditional mushroom culture medium to expand the source of the raw materials for mushroom culture and express characteristics of wide sources of the compressed straws, easiness for production, storage durability, convenience for transportation and the like; and a forest resource is protected, the environmental pollution is reduced and the stability of the nutrition of the mushroom culture substrate is guaranteed; the culture medium disclosed by the invention is suitable for culturing for various types of mushrooms and the period cost and the risk cost caused by domesticating mushroom strains are reduced.

Description

Technical field [0001] The invention relates to the technical field of edible fungus culture substrates, in particular to a method for preparing mushroom cultivation substrates by using compressed straws. Background technique [0002] Shiitake is the most important variety of edible fungi in my country. It is also a large number of edible and medicinal varieties in countries around the world. It is a good product in human health food. Very popular in domestic and foreign markets. The main raw material of traditional bag-grown mushrooms is sawdust. With the increase in market demand for mushrooms, the popularization of bag-grown mushroom cultivation methods and the gradual maturity of cultivation techniques, the production scale of bag-grown mushrooms has expanded year by year, and more and more farmers have invested In the production of bag-grown shiitake mushrooms, and with the decrease of forest resources, the source of wood chips is difficult, and the price of wood chips co...

AI Technical Summary

Problems solved by technology

[0003] As a renewable resource, crop stalks have not been effectively developed and utilized at present. The majority of farmers still mainly use incineration to return them to the fields, which not only wastes resources, but also causes environmental pollution and increases the carbon dioxide content in the atmosphere. This is different from that in my country. The concept of environment-friendly and resource-saving society advocated is contrary to the development direction of building a low-carbon society

In recent years, compressed straw pellets have been used in the fuel and feed industries, but so far they have not been used in the edible fungus cultivation industry; in the edible fungi cultivation industry, there are only publications on the use of straw scraps or powder to make edible fungus culture media, such as 201010291827.4 No. 201010250771.8 "A Coprinus comatus Cultivation Substrate and Its Preparation and Treatment Method" patent application is the patent application No. 201010250771. Straw powder accounting for 10-15% of the compost weight, 30-50% of cassava slag and other waste materials are used to make the medium; since Coprinus comatus and Agaricus bisporus are grass-rot fungi, the demand for lignin and cellulose content is low. Usually, the addition of straw powder or straw chips can meet the needs of the medium for lignin and cellulose content; however, mushrooms are not. The growth of mycelia is maintained by lignin and cellulose, and the lignin and cellulose content in ordinary straw and straw powder is lower than that in sawdust, so ordinary straw and straw powder are not suitable for mushroom culture medium

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