This presentation by Griffin Brock gives insights into methods methods of stimulating plant growth through natural, electrostatic means in addition to artificially generated, high frequency, alternating current. Both methods were proven to be very successful and had specific advantages to given situations.
The method of artificial stimulation presented did not involve high voltage DC potential, as is commonplace in Electroculture, but rather a semi-high frequency AC source. This is designed to mimic the lines of force present between the Earth and upper atmosphere, while being concentrated between a few inches in height. This setup is of simple construction and moderate size and is designed to be used to bring back dying plants as well as generating new growth.
Part of the 2021 Energy Science & Technology Conference series (55 mins downloadable video).