Pleurotus ostreatus cultivating substrate by using medicine slag and marsh slag and preparation method thereof

Abstract

The invention relates to an oyster mushroom growing medium by the utilization of herb residue and biogas residue, and a preparation method thereof. The components of the growing medium are: herb residue, biogas residue, lime powder, gesso, urea, calcium superphosphate, and wheat bran. By combining biogas residue with herb residue, and complementing proper auxiliary materials, the invention ensures that the medium nutrient is complementary to the granule size, thus hitting the target of normal bacteria growing, normal mushroom growing, and stable production without the addition of other raw materials. The invention also provides a method for preparing the growing medium. The cost of the oyster mushroom growing medium is 80 percent lower than that of cottonseed shell raw material and around 60 percent lower than that of straw materials such as corn cob. Usually, the biological efficiency is about 120 percent.

Description

technical field [0001] The present invention relates to a method for comprehensive utilization of two dregs (i.e. traditional Chinese medicine dregs and biogas dregs) raw materials, in particular to a Pleurotus ostreatus cultivation substrate prepared by using Chinese medicine dregs and biogas dregs and a preparation method thereof, which belongs to the method of using new resources to obtain oyster mushroom cultivation Substrate technical field. technical background [0002] Pleurotus ostreatus is the general name of the genus Pleurotus. Currently, artificially cultivated strains mainly include Pleurotus plectrae, Pleurotus purpurea, Pleurotus aeruginosa, Pleurotus florida, abalone mushroom, and Pleurotus ferulae. It can be said that the start of edible fungus production and the formation of industrialization in my country mainly started with flat mushrooms. The main reason is that the production of flat mushrooms is simple and the price is popular, so that the majority of ...

AI Technical Summary

Problems solved by technology

[0004] Plant-based traditional Chinese medicine dregs have low effective nutrients and thick and long particles. When used alone as a cultivation substrate for Pleurotus ostreatus, there are many problems such as insufficient nutrition, too thick substrate, large space in the substrate, and low water holding rate of the substrate. Fruiting efficiency is low, as disclosed in Chinese Patent Document CN1918963 (Application No. 200610068623.8) the method for utilizing Chinese medicine dregs to produce edible fungus cultivation materials, Chinese medicine dregs are taken to ferment the way, so that the substrate with low nutrient content is regenerated in the fermentation process. A large amount of nutrients are lost, which makes the cultivation effect unsatisfactory, and over-ripe traditional Chinese medicine dregs are prone to contamination by fungi such as Neurospora and Trichoderma during the fermentation process, resulting in extremely unstable cultivation effects and low yields; The content of organic matter is higher, but the particles are finely broken, and there are problems such as severe poor ventilation in the substrate, long time for bacteria to occur, and high pollution rate of bacteria bags when used as a flat mushroom cultivation substrate alone; as disclosed in Chinese patent document CN101100403 (application number 200710015927.2). Culture medium of Agaricus bisporus with slag and its preparation method, 2000-4000 parts of biogas residue, 2000-5000 parts of forage, 500-2000 parts of manure powder, 40-120 parts of superphosphate, 20-60 parts of urea, 60-200 parts of lime powder 30-180 parts of gypsum powder, 30-60 parts of calcium carbonate powder