Designing an in situ soil conductivity monitoring sensor for precision agriculture and water management

Rohan Wagh, Oregon, USA 16-18

My project aims to design a soil conductivity sensor that can be used to gather information on soil health, watering needs, and projected crop yield. As soil conductivity (soil EC) sensors are typically expensive and labor-intensive, I looked to create a cost-effective alternative to conventional soil EC sensors. My solution consists of a grid of multi-anode microbial fuel cell (MFC) sensors, which independently record accurate measurements of local soil EC. The measured soil EC values are then plotted on a field map to show soil health, watering needs, and projected crop yield over the field.

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