NOVELTY - Artificial cultivation covering material is prepared by taking fermented soil fertilizer made from underwood compost soil, vegetable garden soil, or orchard soil without impurity and chicken manure and cow manure containing 50.0% moisture; adding herbaceous peat uniformly; spraying nutrient solution made from fresh potato, water, cane sugar, yeast extract, magnesium sulfate, and potassium dihydrogen phosphate; and mixing uniformly to obtain the covering material.    USE - Material (C1) for Phlebopus portentosus (claimed).    ADVANTAGE - The material (C1) has rich raw materials, low cost, environmentally friendly, and simple preparation; achieves high fruiting rate; and is suitable for industrial cultivation of P. portentosus.    DETAILED DESCRIPTION - Artificial cultivation covering material (C1) is prepared by (A) preparation of soil fertilizer comprising providing raw materials, which are 1000.0-2000.0 kg of underwood compost soil, vegetable garden soil, or orchard soil without impurity; removing impurities and crushing the soil; and adding 50.0-100.0 kg of each of chicken manure and cow manure containing 50.0% moisture; (B) stack fermentation by placing a layer of 20 cm forest surface soil, vegetable garden soil, or orchard soil; respectively scattering a layer of chicken manure and cow manure on the soil surface; stacking a layer of soil; scattering a layer of chicken manure and cow manure until stacking the soil completely; finally covering a double-plastic film at the surface of the stack; inserting a thermometer at a depth of 30 cm in the stack; keeping the temperature for 15 days when the temperature reaches 50-55 degrees C; turning the stack for the first time; uniformly stirring the soil and fertilizer; covering the double-plastic film for continuous fermentation; turning the stack once every 30 days; and continuously fermenting the stack for 3 times; (C) preparation of nutrient solution comprising weighing 100-200 g fresh potato; cleaning, peeling, and cutting the potato into slices; putting the slices in a large beaker; adding 1000 ml water; boiling the slices for 20 minutes; filtering the solution; taking the filtrate; adding 10.0-20.0 g cane sugar, 1.0-2.0 g yeast extract, 1.0-2.0 g magnesium sulfate (MgSO4), and 1.0-2.0 g potassium dihydrogen phosphate (KH2PO4); and mixing uniformly until the pH is 4.0-6.0 to obtain the nutrient solution; and (D) preparation of covering material by taking 10.0 kg of the fermented soil fertilizer; adding 10.0 kg herbaceous peat uniformly; and spraying 1000 ml nutrient solution and mixing uniformly to obtain the covering material.