NOVELTY - A microbial strain solution contains 2x 108 pfu/ml white rot fungi, 2x 1012 pfu.ml Lactobacillus acidophilus, 2x 108 pfu/ml Trichoderma viride, 3x 1011 pfu/ml Bacillus subtilis, and 5x 1012 pfu/ml Candida utilis.    USE - Microbial strain solution for straw fermentation (claimed).    ADVANTAGE - Fermentation process is efficient, convenient, and low cost, makes straw nutritional for sheep and cattle absorption and digestion, promotes livestock industry development, accelerates study on animal husbandry and straw for fermentation reduces waste accumulation and waste burning which makes it environment-friendly and helps to increase income of farmers.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) preparation of microbial strain solution which involves inoculating strains into culture medium for activation which are white rot fungi with potato dextrose agar, Lactobacillus acidophilus with man, rogosa, and sharpes (MRS) agar, Trichoderma viride with sabouraud agar, Bacillus subtilis with nutrient broth agar, and Candida utilis with twain agar, incubating at 26-37 degrees C for 3 days to obtain generation strains, separately inoculating at 30 degrees C for 3 days 5 different kinds of generation strains into nutrient broth agar medium to expand cultured broth culture, and mixing in equal proportions by volume 5 different kinds of bacteria obtained from fermentation; and    (2) fermentation of straw which involves adding 0.05-0.15 L substrate containing 30000 mg iron, 17000 mg copper, 30000 mg zinc, 20000 mg manganese, 60 mg selenium, 100 mg iodine, and 40 mg cobalt per 100 kg of microbial strain solution to urea, brown sugar, composite trace elements, and composite vitamins to obtain straw feed liquid, uniformly spraying feed liquid on straws, and seal stacking to ferment and mature in which amount of straw feed liquid per 100 kg straw is 1.5-2 kg urea, 0.5 kg brown sugar, 0.1-0.5 kg composite trace elements, and 0.02-0.06 kg composite vitamins.