The invention discloses a culturing substrate for industrially cultivating
agaricus bisporus and a preparation method thereof, which belong to the technical field of cultivation of edible fungi. In the technical scheme, the culturing substrate consists of raw materials and auxiliary materials such as corn straws, wheat straws,
chicken manure and
gypsum, and is prepared by material preparation, mixing, primary
fermentation and secondary
fermentation; and the culturing substrate has the
nitrogen content of between 2.0 and 2.2 percent, the pH value of between 7.5 and 8.2, the
water content of between 65 and 70 percent, the total
sugar content of between 10 and 18 percent and the
reducing sugar content of between 0.3 and 0.9 percent, is deep brown, contains a large number of visible
actinomyces, is non-sticky when held by hands, is elastic, smells like the
flavor of bread, has small tension and can be scattered and broken by the hands, and over 65 percent of
wax is removed from the straws. Compared with the prior art, the culturing substrate has the advantages of expanding the
raw material source of the
agaricus bisporus culturing substrate, realizing local acquisition of materials, lowering the production costs of raw materials and enhancing
economic benefits; moreover, the culturing substrate has a reasonable formula, reliable physical and
chemical property indexes and good social and
economic benefits, is fully accordant with the growth requirement of the
agaricus bisporus, and increases the yield of the
agaricus bisporus in each
square meter area by 6.96 kilograms and the profit in each
square meter area by 63.96 yuan compared with those of the prior art.