Gardeners experiment with copper or zinc wires wrapped around wooden stakes

https://medium.com/@iortusfkny/supercharge-your-soil-how-electroculture-gardening-boosts-plant-growth-6f2e57e5dc69

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.