REDOX POTENTIAL AND PH TRAINING: WHAT YOUR SOIL ANALYSIS DOESN'T TELL YOU ABOUT THE SOIL-PLANT RELATIONSHIP
Develop agroecological practices by mastering the pH-redox pair, two parameters that govern the health of your soils and crops, based on the research of Olivier Husson, CIRAD researcher.
UPCOMING SESSIONS
In-person :
Webinar :
Autumn 2026
7h00
QUALIOPI CERTIFIED
92
/100
OVERALL SATISFACTION
NO PREREQUISITES
VIVEA/OPCO FUNDING
"NEAR YOU" SERVICE
Why do Redox Potential and pH matter in agronomy?
Redox potential is the most underestimated parameter in agronomy. Combined with pH, it governs the bioavailability of nutrients, plant health, and resistance to pests and diseases. Understanding this mechanism means acting where few advisors still look.
THE REALITY OF THE GROUND
TWO PLOTS, IDENTICAL ON PAPER. TWO DIFFERENT OUTCOMES IN THE FIELD
Same conductivity, same organic matter content, same inputs — and yet one performs better, grows better, and yields better than the other. Why do some crops resist disease better than others, on the same soil, under the same conditions? Why does an element present in sufficient quantity in the soil analysis sometimes remain unavailable to the plant? Conventional soil analysis does not always provide the answer: redox potential, combined with pH, often accounts for a large part of it.
"Despite correct soil analyses and properly applied recommendations, certain blockages persist: apparent deficiencies despite adequate nutrient levels, crops more vulnerable to pests and diseases in certain years, without a satisfactory explanation. Redox potential accounts for much of this discrepancy."
"Your diagnoses stop at conventional indicators (pH, organic matter, CEC), which does not always explain why a recommendation fails to produce the expected effect for a client. Redox potential remains a blind spot, even though it directly governs the bioavailability of the nutrients you recommend."
"You must convey a nuanced understanding of soil function without a structured framework on redox potential: the research of Olivier Husson (CIRAD) has existed for ten years but remains little disseminated in agronomy curricula."
"Your curriculum rarely covers redox potential, depriving you of a decisive analytical framework for interpreting phenomena that conventional soil analysis cannot explain — a gap that becomes apparent as early as your first technical assignments."
"Your catalogue already covers soil analysis and fertility, but lacks a module addressing a parameter still rare in existing training offerings, which limits your ability to stand out to an audience seeking up-to-date content."
"Your advisors or technicians do not always share the same agronomic reading grid when faced with the same symptom in the field, resulting in inconsistent recommendations depending on who intervenes with the client."
What This Training Changes for you
Farmers and Farm Employees
You measure the pH and redox potential of your soil and plants using the appropriate tools.
You understand why certain elements are unavailable despite their presence in the analysis.
You implement good practices to grow healthy, productive plants.
Agronomic Advisors
You integrate redox potential into your soil-plant diagnostics for more precise recommendations.
You identify practices that degrade the pH-redox balance and propose concrete alternatives.
You explain to your clients the good practices to implement for productive, healthy plants.
Agronomic Advisors
You introduce the concept of redox potential into your agronomy courses with a solid scientific framework.
You connect Olivier Husson's research to agricultural practices observable in the field.
You illustrate the influence of pH and redox on plant health with concrete examples.
THIS TRAINING IS TAYLOR-MADE FOR YOU...
SIX PROFILES, ONE SHARED NEED FOR MASTERING THE IMPORTANCE OF REDOX POTENTIAL REDOX AND PH
Farmers and Farm Employees
You want to understand why certain elements remain blocked despite a correct soil analysis, in order to implement concrete practices that genuinely improve the health of your crops
Agronomic Advisors
You want to enrich your soil-plant diagnostics with a parameter that is still underused, to formulate more precise and differentiated recommendations for your clients.
Teachers
You are looking for a solid scientific framework, based on recent research, to introduce redox potential into your agronomy courses.
Students
You want to acquire a body of knowledge still rarely taught in standard curricula, which will set you apart as you enter the job market.
Training Centres
You want to offer your audience a module addressing a differentiating agronomic topic, still rarely covered in existing offerings.
Team Leaders and Managers
You want to align the agronomic reading grid of your team members when facing the same symptom in the field.
WHAT YOU WILL LEARN
SIX LEARNING OBJECTIVES, FROM CONCEPT TO PRACTICE
The training builds a complete understanding: from theoretical foundations to the practical implementation of agroecological practices on your farm or your clients'.
Understand
1
the fundamentals of pH and redox potential
Know
2
how pH and redox potential influence plant development and soil balance
Recognize
3
the relationship between pH, redox potential, plant health, and pest/disease pressure, to better guard against it
Master
4
the effect of agricultural practices on the proper pH-redox balance between soil and plant
Measure
5
the pH and redox potential of soil and plant
Implement
6
agroecological practices that support the balance between plant and soil
DETAILED CONTENT
SIX MODULES, FROM THEORY TO PRACTICAL APPLICATION
1
MASTERING THE FUNDAMENTALS OF REDOX POTENTIAL AND PH
PH-redox and oxidation-reduction: what are we talking about?
Oxidation number
The gamma law
Two coexisting approaches to oxidation-reduction
2
SOIL AND REDOX POTENTIAL
Soil, a large battery
Redox and chemical elements
Redox, deficiency, and toxicity
Redox and weeds
Redox and stability
Redox, climate, and practices
3
PLANT AND REDOX POTENTIAL
Two well-known redox reactions
Plant and homeostasis
Growth, plant, and redox
4
PLANT HEALTH, REDOX POTENTIAL, AND PEST/DISEASE PRESSURE
The fundamentals of plant health
Pest/disease pressure and redox potential
5
POSITIVE PRACTICES
6
REDOX AND MEASUREMENT
YOUR TRAINER IN PH-REDOX
FIELD AGRONOMIC EXPERTISE, DEDICATED TO YOUR PROFESSIONAL DEVELOPMENT
An agricultural engineering graduate of ENITA Bordeaux (Bordeaux Sciences Agro) and a former advisor at the Landes Chamber of Agriculture, Raphaël MARTIAL has more than 20 years of field experience in direct contact with farmers.
He has developed recognised expertise in soil fertility, plant nutrition, agroecology, and soil analysis — fields he teaches by consistently drawing on solid research, including the work of Olivier Husson (CIRAD) for this training.
THEY COMPLETED THE REDOX POTENTIAL AND PH TRAINING COURSE
WHAT PARTICIPANTS SAY ABOUT OUR TRAINING
92
/100
Overall satisfaction
"What struck me most were the solutions offered to optimise plant growth. A training that helps you apply natural methods to manage your crops."
FA
Frédéric A.
Manager, Landes (40)
"Very engaging, concise. Step by step, it's changing the way we work, especially with the use of trace elements."
CM
Catherine M.
Farmer, Landes (40)
"The presentation and analogies make otherwise abstract concepts easy to visualise. This training genuinely teaches the fundamentals of redox potential."
AV
Amélie V.
Advisor, Pyrénées-Atlantiques (64)
"The clarity of the explanations helped me understand phenomena I had already observed on my land, without ever being able to explain them."
ML
Max L.
Farmer, Landes (40)
"Excellent teaching on a complex subject, even though I already had some prior knowledge. It helps me better understand my pH and redox inputs and analyse their impact."
LB
Laurent B.
Farmer, Landes (40)
"The clarity of understanding provided on a highly complex subject allowed me to leave with concrete courses of action: more fractionated inputs, cover crops, more regular measurements."
LC
Loïc C.
Farmer, Landes (40)
ORGANISATION AND PRICING
REDOX AND PH POTENTIAL TRAINING: TWO FORMATS ADAPTED TO YOUR REQUIREMENTS
FREQUENTLY ASKED QUESTIONS