SOLID SUPPORT COMPRISING MICROORGANISMS CAPABLE OF CONDUCTING PARALLEL MULTIPLE MINERALIZATION IMMOBILIZED THEREON, CATALYST COLUMN AND METHOD FOR PRODUCING SOLID MEDIUM FOR CULTIVATING PLANTS

摘要

Provided is a method for efficiently forming nitrate nitrogen, which is a component of inorganic fertilizers, from an organic material without conducing an operation constantly using electricity such as aeration. Also provided is a method for producing a solid medium for cultivating plants whereby hydroponics can be conducted by directly adding an organic fertilizer thereto even in the case of performing the hydroponics by the solid medium cultivation method. Also provided is a method for producing a solid support on which microorganisms capable of conducting parallel multiple mineralization are immobilized, characterized by comprising: filling a container with a breathable solid support; adding thereto the microorganisms capable of conducting parallel multiple mineralization whereby an organic material is mineralized to give nitrate nitrogen; and, in the step of adding the organic material thereto, further adding water and effusing the water from the solid support to thereby wash the solid support, allowing the solid support to stand until the start of the formation of nitrate nitrogen in the effluent.