The invention discloses a method for culturing
pleurotus geesteranus uniformly rich in
selenium by utilizing
sodium selenate. The method comprises the following steps: mixing the
selenium-enriched cultivation material additive with the dry cultivation material, wherein the weight of the
selenium-enriched cultivation material additive is 1-10% of the dry cultivation material, and then culturing according to a common culture method, thereby acquiring the
pleurotus geesteranus uniformly rich in selenium, wherein the total selenium content in the selenium-enriched cultivation material additive is5-500mg / kg; the sizes of the grains in the selenium-enriched cultivation material additive are 0.005-5.0mm and the additive is in various grain sizes area distribution; the grains, the sizes of whichare 1.0-5.0mm are at least 10% of the weight of the additive; the grains, the sizes of which are 0.005-0.1mm are at least 40% of the weight of the additive; and the selenium-enriched cultivation material additive comprises the following raw materials in parts by weight: 100 weight parts of
corncob powder and 0.0012-0.12 weight parts of
sodium selenate. The selenium is high in use ratio, the selenium contents in the
pleurotus geesteranus in different batches are stable, the method is free from hidden danger of
selenium pollution, the operation is convenient, and the method is easily popularized.