NOVELTY - Liquid fertilizer is prepared using dry chicken manure, lignin, complex microbial inoculants, clay, modified starch solution, coffee beans, tobacco dust and water. The compound microbial inoculants comprises silicate solublizing bacteria, Bacillus subtilis and photosynthetic bacteria. The modified starch comprises potato starch, calcium acetate, potassium permanganate solution, acrylic acid, sodium hydroxide, N,N-methylenebisacrylamide, ferrous sulfate, zinc sulfate and manganese sulfate.    USE - The liquid fertilizer useful for corn and improving soil micro-environment.    DETAILED DESCRIPTION - Liquid fertilizer is prepared using 48-52 pts. wt. dry chicken manure, pts. wt. 23-25 lignin, 3-4 pts. wt. complex microbial inoculants, 20-22 pts. wt. clay, 16-18 pts. wt. modified starch solution, 12-15 pts. wt. coffee beans, 14-16 pts. wt. tobacco dust and suitable quantity of water. The compound microbial inoculants comprise silicate solublizing bacteria, Bacillus subtilis and photosynthetic bacteria in the proportion of 2:1:1. The modified starch comprises 45-55 pts. wt. potato starch, 2-4 pts. wt. calcium acetate, 2-3 pts. wt. potassium permanganate solution, 15-20 pts. wt. acrylic acid, 3-4 pts. wt. sodium hydroxide, 0.1-0.3 pts. wt. N,N-methylenebisacrylamide, 8-10 pts. wt. ferrous sulfate, 6-8 pts. wt. zinc sulfate and 7-9 pts. wt. manganese sulfate, and it is prepared by adding two times water to potato starch, heating starch solution at 70-90 degrees C and gelatinizing for 30-60 minutes, oxidizing gelatinized starch solution using potassium permanganate solution for 50-70 minutes, stirring the reacting mixture while oxidizing, adding acrylic acid and sodium hydroxide to oxidized mixture, cross-linking obtained mixture with N,N- methylenebisacrylamide for 20-30 minutes, adding calcium acetate to cross-linked mixture and stirring evenly, heating the reaction mixture at 50-60 degrees C, chelating heated mixture with ferrous sulfate for 15 minutes, stirring evenly, adding zinc sulfate, and chelating for 15 minutes, finally adding manganese sulfate and heating reaction mixture at 60-80 degrees C and chelating for 20-30 minutes to obtain modified potato starch solution. An INDEPENDENT CLAIM is included for method for preparing liquid fertilizer which involves (a) mixing clay, tobacco dust, dry chicken manure and lignin in fermentation tank, regulating moisture content of the mixture to 55-65%, fermenting the for 3-4 weeks and pressing to obtained fermented liquid, (b) drying coffee beans at 50-70 degrees C and crushing to obtain fine powder, boiling fine powder with water at 68-72 degrees C under stirring condition for 5-10 minutes to obtain coffee solution, cooling obtained solution to 30 degrees C, and adding complex microbial inoculants, stirring the mixture, filtering to obtain filtrate, air drying obtained filtrate at 47-53 degrees C using blower and grinding to obtain coffee powder, (c) mixing fermented liquid obtained in step (a) with modified starch solution, drying obtained mixture in oven at 100-120 degrees C for 20-30 minutes, cooling and crushing dried mixture to obtain mixed powder and sieving mixed powder with 200 mesh size sieve, (d) mixing coffee powder obtained in step (b) with mixed powder obtained in step (c) and remaining material, drying obtained mixture at 65-75 degrees C and packing in plastic bags, and (e) adding water to packed mixture obtained in step (d), where the packed mixture and water is added in the mass ratio of 1:9, mixing to dissolve, spraying 15-25 kg obtained solution/ acre soil.