TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Method: The method involves inoculating the activated photosynthetic bacterial strains on sterilized slant medium (SM1), culturing the photosynthetic bacterial strains at 28-30 degrees C under an anaerobic condition and light illumination of tungsten filament lamp for 5-7 days to obtain culture broth. The method involves inoculating the activated nitrogen-fixing bacterial strains on sterilized slant medium (SM2), culturing the photosynthetic bacterial strains at 25-27 degrees C under aerobic condition for 1-2 days to obtain culture broth. The method involves inoculating the activated silicate bacterial strains on sterilized slant medium (SM3), culturing the photosynthetic bacterial strains at 25-28 degrees C under aerobic condition for 1-2 days to obtain culture broth. The method involves inoculating the activated Cyanobacteria strains on sterilized slant medium (SM4), and culturing the Cyanobacteria bacterial strains at 28-30 degrees C and under an aerobic condition and light illumination of fluorescent lamp (10-14 hours/day) for 3-5 days to obtain culture broth. The method involves inoculating the activated yeast strains on sterilized slant medium (SM5), and culturing the Cyanobacteria bacterial strains at 28-30 degrees C and under an aerobic condition for 3-5 days to obtain culture broth. Preferred Media: The slant medium (SM1) comprises 10 g yeast extract, 1 g dipotassium hydrogen phosphate, 0.5 g magnesium sulfate, 20 g agar and 1000 ml water, has pH of 7-7.2, and is sterilized at 121 degrees C for 15 minutes. The slant medium (SM2) comprises 0.5 yeast extract, 20 g mannitol, 0.2 g potassium dihydrogen phosphate, 0.8 g dipotassium hydrogen phosphate, 0.2 g magnesium sulfate, 0.1 g calcium sulfate, 15 g agar, 15 g ferric chloride, 0.01 g sodium chloride, 15 g agar and 1000 ml water, has pH of 7.2, and is sterilized at 121 degrees C for 20 minutes. The slant medium (SM3) comprises 10 g sucrose, 5 g calcium sulfate, 0.2 g dipotassium hydrogen phosphate, 5 g calcium carbonate, 0.2 g magnesium sulfate, 0.2 g sodium chloride, 14 g agar and 1000 ml water, has pH of 7.5, and is sterilized at 121 degrees C for 20 minutes. The slant medium (SM4) comprises 1.5 g sodium nitrate, 0.05 g dipotassium phosphate, 0.08 g magnesium sulfate, 0.04 g calcium chloride, 0.02 g sodium carbonate, 0.006 g citric acid, 0.006 g ferric citrate, 0.001 g zinc sulfate, 0.001 g manganese chloride, 20 g agar and 1000 ml water, has pH in neutral range, is sterilized at 121 degrees C for 20 minutes. The sterilized slant medium (SM5) comprises 200 g potato starch, 20 g sucrose, 15-20 g agar and 1000 ml water, has pH in neutral range, and is sterilized at 121 degrees C for 30 minutes. ACTIVITY - Fertilizer; Plant Growth Stimulant.