> Soil microbes interact with plant roots to generate low voltage. Specific electrodes planted in the soil convert the voltage into a low current that acts as a stimulus for plant growth by boosting metabolic processes, including photosynthesis.

> Seedlings were grown in 3 kg pots, filled with the mixture of red soil, sand and treated with fungicide for inhibiting the fungal infections

It would be very interesting to take the next step and try this in different soil types especially what would generally be considered as 'better' or 'more normal' (say no-til farming with rich soil-life, balanced amounts of minerals, etc - not 'red soil mixed with sand'). Just thinking out loud, but it might be possible that this 'convert the voltage into a low current' actually happens in such less sterile soil type automatically because it already has anodes and cathodes.