The invention discloses an industrial
bottle-cultivation white needle
mushroom culture medium and a preparation method thereof. The sources of the raw materials of the culture medium are abundant, and the culture medium has low cost, is reasonable in proportioning, and is favorable for the growth of needle mushrooms. The culture medium comprises the following raw materials in percentage by weight: 42 to 48 percent of
corncob, 13 to 17 percent of rice
bran, 18 to 22 percent of aspen wood
saw dust, 6 to 8 percent of red-
skin winter wheat bran, 2.5 to 3.5 percent of
corn flour, 2.5 to 3.5 percent of
bagasse, 1.5 to 2.5 percent of liquoric root dregs and 4 to 6 percent of
gypsum. The preparation method comprises the following steps of: crushing the raw materials of the needle
mushroom culture medium into granules; mixing the
corncob, the aspen wood
saw dust and the
bagasse according to the ratio, performing primary stirring for 15 minutes, and adding water gradually; adding other raw materials according to the ratio, performing secondary stirring for 30 minutes, and adding the water gradually; and testing
moisture content by using a
moisture tester until the
moisture content is between 62.5 and 64 percent.