NOVELTY - An aerobic composting of solid compostable organic material is promoted without the necessity of agitating such material, comprising providing three-dimensional, layer-forming structures, which are less biodegradable than the mass of solid organic material being composted, is new.    USE - For promoting aerobic composting of solid compostable organic materials.    ADVANTAGE - The use of layer-forming structures permits the introduction of air into all areas of the compost mass, enabling aerobic decomposition to continue and preventing the central areas of the mass from becoming anaerobic, and thus eliminating the necessity of agitating the compostable material. The layer-forming structures may be impregnated with composting enhancers and accelerators, thus providing these materials in a readily handled form and reducing the risks associated with their exposure during handling/packaging. The layer-forming structures ultimately degrade to enhance the structure of the final product. Use of the final product provides improved soil conditioning, disease control in plants/soil, pest control in plants/soil, growth control of plants, and bioremediation of contaminated soils.    DETAILED DESCRIPTION - Promotion of aerobic composting of solid compostable organic material without the necessity of agitating such material, comprising:    (a) forming a mass of solid compostable organic material having a vertical height dimension and a horizontal cross-sectional area;    (b) positioning within the mass of compostable material, at intervals along the height dimension of the mass, three-dimensional structures formed from rigid biodegradable material; and    (c) maintaining the layered compostable mass under conditions useful for effecting a desired extent of biodegradable of the compostable material, where three-dimensional, layer-forming structures create aeratable spaces between the layers of compostable material and these structures are formed of material, which is less biodegradable than the mass of solid organic material being composted, is new.    INDEPENDENT CLAIMS are also included for the following:    (1) a container useful for promoting the aerobic composting of solid compostable organic material without the necessity of agitating such material, comprising vertical container walls and three-dimensional structures formed of rigid biodegradable materials;    (2) a kit comprising the container and instructions for its use; and    (3) use of a three-dimensional structure formed from rigid biodegradable material in a composting method or a container.    DESCRIPTION OF DRAWING(S) - The figure shows a composting container.    Container (1)    Container walls (2)    Air supply device (4)    Layer-forming structures (5)    Perforations (6)    Compostable material (7)