The present invention is pre-cultivated antagonistic antimicrobial microorganisms in the organic fertilizer raw material and mixed with the organic fertilizer raw material and the expanded ore powder to have a porosity to re-cultivate the supply of carbonaceous to the soil and oxygen through the supply of pores, water retention As the organic fertilizer having a breathable property to promote the growth of crops, which has the property to improve the;Pre-cultivation of antagonistic antimicrobial microorganisms in brewer's sludge, sawdust and rice bran;;It is characterized in that it is obtained by mixing the pre-cultured microorganisms with beer sludge and sawdust, soybean meal, pearl and expanded pearlite powder to have a porosity.
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