A basic setup involves a wooden pole, a copper spiral winding upward, and a grounding spike or buried wire
https://arthurelps397.huicopper.com/my-first-year-with-electroculture-gardening-lessons-learned
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.