New Rootsnap Sensor Reveals the Ameliorating Effect of Biochar on Root Growth Dynamics of Maize in Sandy Soil.

We investigated if subsoil constraints to root development imposed by coarse sand were affected by drought and biochar application over two seasons. Biochar was applied to the subsoil of pots at 20-50 cm depth in concentrations of 0%, 1%, 2%, and 3% (B0, B1, B2, and B3). Maize was grown in the same pots 1 week and 12 months after biochar application.