Organic fertilizer prepared from waste edible mushroom culture medium

The invention discloses an organic fertilizer prepared from a waste edible mushroom culture medium, relating to the field of organic fertilizers. The organic fertilizer is composed of the following components in parts by weight: the waste edible mushroom culture medium 50-60%, excrements of livestock 20-40%, calcium magnesium phosphate 18-24%, and coal ash 10-12%. The organic fertilizer has the beneficial effects of changing waste into wealth, purifying the environment and protecting the environment; after the organic fertilizer is used, during composting, decomposition and conversion processes, the formed humic acid, vitamin and various enzyme matters can improve nutrition of crops, reinforce metabolism of the crops, stimulate growth of the crops, and improve the quality. Meanwhile, content of beneficial microorganism in the soil is increased, thus soil-borne diseases are decreased, soil activity is promoted, dominant bacterial community of a root system of the crop is increased, growth of pathogenic bacteri