Selenium-rich ganoderma lucidum cultivation material and preparation method thereof

The invention relates to a selenium-rich ganoderma lucidum cultivation material and a preparation method thereof. The selenium-rich ganoderma lucidum cultivation material is prepared from raw materials in percentage by weight as follows: 55%-65% of corncobs, 18%-25% of wood flour, 15%-20% of selenium-rich alfalfa meal, 0.8%-2.0% of gypsum powder and 0.8%-2.0% of calcium superphosphate. According to the selenium-rich ganoderma lucidum cultivation material, the raw material ratio is reasonable, nutrition is balanced, the utilization ratio of selenium is high, C/N (carbon to nitrogen ratio) meets cultivation requirements of ganoderma lucidum, the selenium content of ganoderma lucidum produced by the cultivation material with a conventional bag type cultivation method reaches 0.15 mg/kg-1.5 mg/kg and is 5-50 times of that of common ganoderma lucidum, selenium-rich ganoderma lucidum has abundant nutrition and is very good green health food with a selenium supplement function, the sale price of selenium-rich ganoderma lucidum is higher than that of common ganoderma lucidum by more than 10%, and the selenium-rich ganoderma lucidum is highly appreciated by producers and costumers and has wide development prospect.