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

https://troyoajb307.theburnward.com/electroculture-for-beekeepers-planting-nectar-rich-forage

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.