3D printing of ecologically active soil structures

"This study investigates the feasibility of 3D printing soil structures that could support plant life. Stand-alone soil structures were successfully printed without additives using an extrusion method. When the water content is properly controlled, the printed structures are able to support germination and growth of plants. Additionally, we show that the water retention capabilities of printed structures differ from potted soil of the same composition. In three different soil textures, we correlate the drying characteristics with the ability of the soil to support plant growth, and show a fundamental difference in the soil-water characteristics of the extruded soils."

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(c) Tiago Charters de Azevedo