Gardeners experiment with copper or zinc wires wrapped around wooden stakes

https://www.scribd.com/document/1027298804/ElectroCulture-Gardening-and-Compost-Enhancing-Nutrient-Cycles-164411

Gardeners experiment with copper or zinc wires wrapped around wooden stakes, forming vertical antennas that channel subtle electrical potentials into soil, reportedly enhancing root development and nutrient uptake.