A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire

https://jeffreytdct399.iamarrows.com/eco-friendly-farming-with-electroculture-less-water-more-yield

A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire, positioned near crops to capture atmospheric ions and gently influence local electrostatic conditions.