NOVELTY - Manufacturing lactic-acid compost, involves forming a first mixture by stirring cow's milk with a substance formed by mixing wood chips, forming a second mixture by mixing lactic acid bacteria diluted in cow's milk with the first mixture and adding the second mixture and the lactic acid soil into a container for a predetermined period to carry out fermentation, where a combination of straw, lactic acid bacteria, wood chip, etc. are used.    USE - (M1) is useful for manufacturing lactic-acid compost for improving soil (claimed).    ADVANTAGE - (M1) enables to manufacture lactic-acid compost, efficiently and thus improves soil content.    DETAILED DESCRIPTION - Manufacturing (M1) lactic-acid compost, involves forming a first mixture (2) by stirring cow's milk (3) (the milk of other animals being included) with mixture (1) formed by mixing wood chips and bark, which have been subjected to decomposition and dry sterilization, forming a second mixture (6) by mixing lactic acid bacteria (5) diluted in cow's milk with the first mixture, adding the second mixture and the lactic acid soil (9) into a fermentation container (8) for a predetermined period to carry out fermentation, where a combination of straw, lactic acid bacteria, wood chip, etc. are used.    An INDEPENDENT CLAIM is also included for the soil improvement using the wood chip and lactic acid bacteria, where the Lactobacillus has fermentation capability and decomposes saccharide components (cellulose etc.) and produces a lactic acid, promotes decomposition of wood by decomposing the carbohydrate of wood in lactic-acid compost, where the lactic-acid produced by the Lactobacillus and the organic acid have an antimicrobial effect which suppresses growth of fungi which cause damage to plants, and where the acid content lowers pH in the soil which is inclined to alkalinity by excess charge of the composed or lime materials, thus improving the physicochemical nature or biological property of the soil and enhanced effect excellent in preservation of soil. ("sic")    DESCRIPTION OF DRAWING(S) - The figure shows the side view of the process of manufacturing lactic-acid compost.    mixture of wood chips and bark (1)    mixture of wood chips, bark and cow's milk (2)    cow's milk (3)    device (4)    Lactobacillus (5)    mixture of wood chips, bark, cow's milk and Lactobacillus (6)    fermentation container (7,8)    lactic acid soil (9)