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.

Automated summary

This study investigates the feasibility of 3D printing soil structures that could support plant life. The results show that stand-alone soil structures can be successfully printed without additives using the extrusion method. By properly controlling the water content, the printed structures are capable of supporting germination and growth of plants. It is also found that the water retention abilities of the printed structures differ from potted soil of the same composition. The study demonstrates a fundamental difference in the soil-water characteristics of the extruded soils and correlates the drying characteristics with the ability of the soil to support plant growth in different soil textures.