Soil Electrophysiology: Reading and Amplifying the Underground Signal
Go beneath the surface. Learn to measure soil voltage gradients, ionic flow, and microbial bioelectric fields — then use that data to design precision active-stimulation rigs that speak the soil's own language.
What You'll Be Able To Do
- You can measure soil voltage gradients with a multimeter and standard probes.
- You can map ionic conductivity and redox potential across a bed.
- You can design a multi-electrode active stimulation array.
- You can choose a waveform — DC, pulsed, or AC — for a given soil condition.
- You can log field data to the EGA protocol format for season-long comparison.
What This Course Is
Most electroculture content stops at “stick a copper antenna in the ground.” This course goes deeper — literally.
Soil is not an inert medium. It is a living electrochemical matrix in which voltage gradients, ionic currents, and microbial bioelectric networks are constantly at work regulating root growth, nutrient uptake, and drought signalling. Soil Electrophysiology is the first EGA course built around the measurement and deliberate manipulation of those signals.
Who It’s For
- Growers who have experimented with passive antenna systems and are ready for the next level
- Hobbyist scientists comfortable with a multimeter and basic electronics
- Researchers wanting a practical, field-deployable framework for bioelectric soil data
What You’ll Learn
| Module | Topic | Format |
|---|---|---|
| 01 | The Soil as an Electrochemical Cell | Article + Simulation |
| 02 | Voltage Mapping: Probes, Electrode Materials & Spacing | Article |
| 03 | Measuring Ionic Conductivity & Redox Potential | Interactive Lab |
| 04 | Microbial Bioelectric Networks — the Rhizosphere Circuit | Article |
| 05 | Designing a Multi-Electrode Active Array | Notebook |
| 06 | Waveform Selection: DC vs. Pulsed vs. AC | Simulation |
| 07 | Data Logging & EGA Protocol Integration | Article |
| 08 | Case Study: Tomato Bed Voltage Mapping (Season-Long) | Video + Data |
What’s Included
- 8 in-depth modules (estimated 4 hrs study + field time)
- 3 interactive simulations including an electrode-array designer
- 2 Quarto data-analysis notebooks (downloadable, run locally or in cloud)
- EGA Soil Electrophysiology Protocol PDF — standardized field measurement sheet
- Private cohort channel during the first 60 days post-launch
- Lifetime access + all future module updates
Early-Bird Pricing
The course launches September 15, 2026 at $97.
Pre-sale members lock in $47 — a 52 % saving — and get priority access 48 hours before the public launch. Only 40 early-bird spots are available.
Reserve your spot below. You will not be charged until launch day, and you can cancel any time before then.
A Note from the Instructor
“I spent two growing seasons mapping voltage gradients across a single 4×8 bed and was stunned by what I found — zones that differed by more than 400 mV within 30 cm of each other, correlating directly with root density and germination rate. This course is built entirely from that field data. It is the course I wish had existed when I started.”
— David, EGA Founder
David
I've spent two growing seasons mapping voltage gradients across raised beds, one 4×8 plot at a time — including the layouts that produced nothing measurable. Most of what I teach started as a setup that didn't work the way I expected. I document the null results alongside the wins, because a course that only shows you the wins isn't teaching you how to run the experiment yourself.
I've run 21 of the 47 experiments in the library myself — including the ones that didn't work.
Questions Worth Answering Straight
Will this work in my climate / my soil / my container garden?
The physics — atmospheric charge, ionic conductivity, plant bioelectrics — doesn't care about your hardiness zone. What changes by region and season is the magnitude of the effect, not whether it exists. Every course has you measure your own baseline first, so you're testing your actual conditions instead of assuming a national average applies to your bed.
Do I need electrical experience?
No. If you can use a multimeter, or are willing to learn — each course covers it — you have what you need. Nothing here runs above 24V DC or requires wiring-code knowledge. This is bench-level electronics, not a house panel.
What do I actually have to build, and what does it cost?
Materials vary by course, but most passive and active builds run under $50 in copper wire, connectors, and a basic meter — on top of the course price above. Every build list is itemized in the module content before you buy anything.
How long before I see anything?
Depends what you're measuring. Voltage differentials show up within days of installation. Growth and yield effects take a full cycle — most EGA field data runs 6–8 weeks, which is why every course has you logging data from day one instead of eyeballing it at harvest.
What if I see no effect?
Document it — that's data too. Even negative results teach us something. A null result under specific conditions (your soil type, your season, your geometry) is exactly the kind of finding that sharpens the next grower's setup. This isn't a course that pretends every install works everywhere.
How much time does this take per week?
Pacing is self-directed. Most students spend 1–3 hours a week on lessons, plus whatever field time your build needs — usually under 30 minutes once it's installed.
Is this backed by real research, or just theory?
Every course draws from the ElectricFertilizer research library — documented experiments with controls, measurements, and outcomes, including the ones that didn't hold up. You can read the public claims for any experiment referenced in a course at /research before you enroll.
Full refund within 14 days of enrollment. Email us and it's done — no form, no hoops.