Pleurotus eryngii culture medium

The invention discloses a pleurotus eryngii culture medium. The pleurotus eryngii culture medium comprises the following raw materials in percentage by weight: 47-47.5% of broadleaf wood flour, 26.5-27.5% of corn cob, 5.2-5.3% of corn flour, 1-1.1% of bean pulp, 18-18.5% of bran, 0.66-0.68% of light calcium carbonate, 0.19-0.21% of white sugar and 0.33% of lime. The pleurotus eryngii culture medium is prepared through the following steps: performing pile fermentation on the broadleaf wood flour for more than 60 days; then proportionally weighing the broadleaf wood flour, corn cob, corn flour, bean pulp, bran, light calcium carbonate, white sugar and lime; and adding water, uniformly stirring, and regulating the water content to 65-66% and the pH value to 8.5-9.0. According to the growth characteristics of pleurotus eryngii hyphae and the carbon-nitrogen ratio requirement for the growth thereof, the ratio of the raw materials suitable for the growth and development of pleurotus eryngii is screened out in the i