Gardeners experiment with copper or zinc wires wrapped around wooden stakes

https://www.scribd.com/document/1031631349/Copper-Tape-Wire-or-Rods-Choosing-Materials-for-Electroculture-Gardening-159241

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.