NOVELTY - A Pleurotus geesteranus slag culture base material comprises 35-65 pts. wt. Pleurotus geesteranus, 30-40 pts. wt. pig manure, 0.5-1 pt. wt. shell powder, 0.5-1.5 pts. wt. monopotassium phosphate, 1.5-2 pts. wt. ammonium polyphosphate, 1-1.5 pts. wt. lime, 1-2 pts. wt. calcium sulfate, 2 pts. wt. calcium superphosphate, 1-1.5 pts. wt. wheat bran, 1 pts. wt. rice straw and 1.5-2.5 pts. wt. magnesium sulfate.    USE - Pleurotus geesteranus slag culture base material.    ADVANTAGE - The material improves mushroom spawn production speed to 1.16-1.18 cm/day, fruiting period to 6-10 days, harvesting period to 11-17 days, mushroom yield to 34-38%, and reducing environment bacterial residue contamination.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for cultivation of needle mushroom comprising: crushing Pleurotus geesteranus and rice straw, and drying to obtain crushed Pleurotus geesteranus and crushed rice straw; prewetting pig manure for 2-4 days, adding crushed Pleurotus geesteranus at 72-75 degrees C, adding shell powder, wheat bran, crushed rice straw, monopotassium phosphate, ammonium polyphosphate, magnesium sulfate, lime, magnesium sulfate and calcium superphosphate, and regulating pH at 7.5-8 and water content of 65-70%; placing into sterilized mushroom house, spreading into mushroom bed, sealing door and window, ventilating at 60-65 degrees C for 8-10 hours, cooling to 50-55 degrees C, maintaining at 45-50 degrees C for 3-4 days, holding for 12 hours, and cooling; leveling layer to thickness of 20-25 cm, opening door and window, and maintaining temperature to 20-28 degrees C; spreading strain, closing door and window for 3-5 days, and holding to 22-25 degrees C at relative air humidity of 75-85%; and covering soil at thickness of 3-3.5 cm for 15-20 days, keeping temperature to 22-25 degrees C at relative air humidity of 85-90%, growing soil layer to 2/3, keeping temperature to 15-20 degrees C at relative air humidity of 85-95%, ventilating 1-2 times for 1-2 hours, and reaching mushroom handle length to 14-15 cm.