TECHNOLOGY FOCUS - BIOLOGY - Preferred Method: The Bacillus subtilis, Bacillus stearothermophilus, Streptomyces albus and Trichoderma viride utilizes an ordinary bacteria culture medium, which is a slant culture with water (1000 ml), where the culture medium (pH = 7.2-7.5) comprises (in g) yeast extract (1-5), peptone (3-5), white granulated sugar (5-12), sodium chloride (0.5-1) and agar (15-18). The culture medium is not limited to the above mentioned composition, where the usable culture medium is described in detail in 'Berger Bacteria Identification Handbook Eighth Edition' (Science Press, 1984) and 'Microbiology Experiment' (Science Press, 2002.8). The Streptomyces albus utilizes Gauze's culture medium number 1 in 1000 ml water, comprising (in g) potassium nitrate (1.5-3), magnesium sulfate (0.5-2), sodium chloride (0.5-2), dipotassium hydrogen phosphate (0.5-2), iron sulfate (0.01-0.05), soluble starch (15-25) and agar (15-18) with the pH value of 7.2-7.4. The Trichoderma viride is cultured with potato dextrose agar culture medium in water (1000 ml), comprising (in g) potato filtrate (200), cane sugar (20) and agar (20); and liquid sucrose-corn powder-soybean meal (SCS) culture medium comprising (in g) sucrose (30), corn powder (15), soybean meal (15) and water (1000 ml). The culture time and temperature of: Bacillus subtilis is 22-38 degrees C and 10-20 hours; Bacillus stearothermophilus is 22-38 degrees C and 45-55 hours; Streptomyces albus is 55-68 degrees C and 30-50 hours; and Trichoderma viride is 25-30 degrees C and 45-55 hours. The solution expansion is carried out by transferring the slant cultured Bacillus subtilis, Bacillus stearothermophilus and Streptomyces albus into liquid nutrient medium for culturing, except culturing the Trichoderma viride with liquid SCS culture medium, removing agar and other ingredients, maintaining the culture temperature and time identical to the slant culture; and the culture method is carried out by culturing all the strains during the expansion period in a shaker with a rotating speed of 150-180 rotations/minute. Preferred Components: The Bacillus subtilis, Bacillus stearothermophilus, Streptomyces albus and Trichoderma viride are provided by Institute of microbiology, Chinese academy of sciences. The complex microbial inoculum as powder, its physical and chemical properties are as follows: the first line indicates item description and microbial inoculum (powder); the second line is (i) effective viable cells (cuf)/(hundred million/g), which is greater than or equal to 0.05; the third line is cellulase activity a/(U/g), which is greater than or equal to 30; the fourth line is protease activity b/(U/g), which is greater than or equal to 15; the fifth line is moisture (in %), which is greater than or equal to 35; the sixth line is fineness (in %), which is greater than or equal to 70; the seventh line is pH value, which is 5.5-8.5; the eighth line is period of validity (period c/month), which is greater than or equal to 6; the ninth line is (a) determines the cellulase activity with crop straw as decomposition object; (b) determines the protease activity with the excrements of live stock as decomposition object; and (c) this item only tests under the condition that the superintendent office, arbitration or both consider it is necessary.