Gardeners experiment with copper or zinc wires wrapped around wooden stakes

https://medium.com/@iortusfkny/soil-microbes-and-electroculture-a-symbiotic-boost-for-roots-e426b7f2ca39

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.