NOVELTY - Composting organic material involves providing central air duct (12) having end portion/open second end portion (16)/length/open air channel (18); providing elongated aeration strip (26) having end portions/support surface/open airway beneath the surface; providing air handling unit for transporting air through aeration strip/central air duct; positioning organic material closely adjacent the surface of strip; actuating air handling unit so that air is transported through organic material/aeration strip/central air duct; and providing aeration hub having open end portions and open airway.    USE - For composting organic material (claimed), useful for producing valuable soil amendment material.    ADVANTAGE - The method has low operating cost; provides uniform air introduction and removal within a pile or windrow; simplifies cleaning and maintenance; does not require manual manipulation of the aeration equipment during removal and replacement of the composting material; and allows heavy equipment and the use of large buckets and other material handling equipment to traverse the aeration components without undue wear or damage.    DETAILED DESCRIPTION - Composting organic material involves providing a central air duct (12) having a first end portion, an open second end portion (16), length that extends between the first and second end portions, and an open air channel (18) that extends along at least a portion of the length; providing elongated aeration strips (26), having first and second end portions, a support surface that extends between the first and second end portions and an open airway beneath the support surface, where the support surface has vent openings that are positioned to be in open fluid communication with the airway, where the first end portions of the aeration strips being operatively coupled with the central air duct in a manner that places the open airway in open fluid communication with the open air channel; providing air handling unit for transporting air through the aeration strips and the central air duct; positioning the organic material closely adjacent the support surfaces of the aeration strips; actuating the air handling unit so that air is transported through the organic material, the aeration strips, and the central air duct; and providing aeration hubs (42), having open first and second end portions and an open airway extending between the first and second end portions, in a spaced relationship with one another along the length of the central air duct, where the first end portion of the aeration hubs are placed in open fluid communication with the open airway of at least one of the aeration strips, where the second end portion of the aeration hub being placed in open fluid communication with the open air channel of the central air duct. In the method, the aeration strips are positioned to extend away from the central air duct at an angle with respect to the length of the central air duct, at least one of the aeration strips extending away from each of two generally opposite sides of the first end portions of the aeration hubs so that the aerations trips extend away from a first side of the central air duct and aerations trips extend away from a second side of the central air duct, two generally opposite sides of the first end portions of the aeration hubs are each provided with openings that place the open airways of the aerations trips in open fluid communication with the open air channel of the central air duct, at least one of the aeration hubs being provided with an air control insert that is rotatably coupled within the first end portion of the aeration hub, the air control insert has top wall and a generally annular sidewall that extends down from the top wall, where the sidewall has openings that are positioned along the sidewall so that the air control insert may be selectively moved between an open position, which aligns the openings in the air control insert with the openings in the sides of the first end portion of the aeration hub and permits fluid to pass between the open airways of the aeration strips and the open air channel of the central air duct, and a closed position, which prohibits fluid to pass between the open airways of the aeration strips and the open air channel of the central air duct.    DESCRIPTION OF DRAWING(S) - The figure shows a partial, isometric view of a manifold trench and aeration floor assemblies configured with composting system.    Central air duct (12)    Open second end portion (16)    Open air channel (18)    Aeration strips (26)    Aeration hubs (42)    Manifold trench (74)