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Thomas LEBORGNE
28th February 2024, 79th IIRB Congress
1
PRÉVIBEST
Apprehend the risk of soil
compaction during beet harvest
2
Soil compaction …
Soil
resistance
Pressure
on soil
SOIL COMPACTION
Crops
productivity
Soil
functions
Tyres Type of soil
Humidity
Axle load
Deep soil compaction
>50 cm
(Source: SolDphy 1, ITB-Agrotransfert)
(Source: ITB)
3
… during beet harvest
SEPT DEC/JAN
Beet harvest campaign
Beet harvesters are getting heavier
Risk of deep soil compaction
(> 30 cm deep)
4
Farmers misreading of soil compaction
Ruts and deformations on the soil
surface, this beet harvesting
organization is creating a lot of
soil compaction
Source : Betteravenir 2023
5t/wheel
> 10t/wheel
5
Project Prévibest
PRÉVIBEST Project
2020 2023
Objective : develop a prototype tool to help farmers and technicians, sugar-industry
stakeholders to understand the issue deep soil compaction generated by beet harvests and
facilitate its consideration in the organization of the harvest and in decisions at the field in
order to reduce this risk.
Tool construction Field experimentations
6
Project Prévibest – Tool construction
Farmer’s beet harvesting situation Limit/reduce the risk of deep soil
compaction
Decision
making tool
Soil compaction simulation ?
TERRANIMO®
Soil compaction model
Soil datas and machines
information ?
Beet harvesting
scenarios in sugar beet
regions
Soil humidity ?
STICS®
Soil/plant/weather
model
7
Project Prévibest – Advice construction
Historical soil
compaction library
TERRANIMO® STICS®
10 Years
11 types
of soil
12 weather
stations
Machines
datas
> 5 000 000 simulations
GOAL
Strategic tool
Levers of soil compaction
reduction efficiency
Risk areas depending
beet harvest date
8
Project Prévibest – Field experimentations
CHEVRIERES
BOIRY
Comparison of two crops rotation:
WHEAT WHEAT WHEAT
BEET BEET
WHEAT PEA BARLEY
BARLEY WHEAT
Rotation with
repeated soil
compaction
Rotation with one
soil compaction at
the beginning
Beet
Beet
Field expérimentations results
Yields, yield components, roots
development, cultural profile,
penetrometer, etc.
Datas for decision
making tool
2019 -> 2023
9
Project Prévibest – Tool functioning
TERRANIMO® STICS®
Farmer’s beet harvesting situation
Levers that can be mobilized by
farmers, tests of some solutions
according to the farmers obligations
Real time tool
DIAGNOSIS
Soil compaction
analysis
Surface at
risk
Agronomic
issue
Regeneration
time
IMPROVED SITUATION
THANKS TO ADVICE
Less soil
compaction
Less surface
at risk
Advice, alternatives
10
Stakes
Contractors
calendar
Industry
calendar
Contractors beet
harvesters
Decision
making tool ?
Reasoning
making tool
Weather and soil
variability
Farmer’s
equipment
Soil compaction
risk ‘model’
Take into
consideration
constraints and limits
Bring lines
of thinking
11
Conclusion
PRÉVIBEST PROJECT
Beet harvest
context
Field datas
Soil compaction
simulation
Reasoning
making tool
Farmers, technicians, sugar-industry
stakeholders
Diagnosis
Alternatives
Consequences
Take in consideration the risk of deep soil
compaction during beet harvest
12
Thanks for your attention
Project team :
Thomas LEBORGNE (ITB), Damian MARTIN (AGT), Pierre DUL (ITB), Rémy DUVAL (ITB), Annie DUPARQUE
(AGT), Vincent TOMIS (AGT), Cyril BLONDIN (Tereos), Francis BAZELAIRE (Tereos), Damien ANDRIEU (Tereos),
Guillaume BRISSET (ITB)
Scientific support :
Mathieu LAMANDÉ (Univ. Aarhus)
Hubert BOIZARD (INRAE retired)

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Présentation IIRB 2024 Prévibest T. Leborgne

  • 1. Thomas LEBORGNE 28th February 2024, 79th IIRB Congress 1 PRÉVIBEST Apprehend the risk of soil compaction during beet harvest
  • 2. 2 Soil compaction … Soil resistance Pressure on soil SOIL COMPACTION Crops productivity Soil functions Tyres Type of soil Humidity Axle load Deep soil compaction >50 cm (Source: SolDphy 1, ITB-Agrotransfert) (Source: ITB)
  • 3. 3 … during beet harvest SEPT DEC/JAN Beet harvest campaign Beet harvesters are getting heavier Risk of deep soil compaction (> 30 cm deep)
  • 4. 4 Farmers misreading of soil compaction Ruts and deformations on the soil surface, this beet harvesting organization is creating a lot of soil compaction Source : Betteravenir 2023 5t/wheel > 10t/wheel
  • 5. 5 Project Prévibest PRÉVIBEST Project 2020 2023 Objective : develop a prototype tool to help farmers and technicians, sugar-industry stakeholders to understand the issue deep soil compaction generated by beet harvests and facilitate its consideration in the organization of the harvest and in decisions at the field in order to reduce this risk. Tool construction Field experimentations
  • 6. 6 Project Prévibest – Tool construction Farmer’s beet harvesting situation Limit/reduce the risk of deep soil compaction Decision making tool Soil compaction simulation ? TERRANIMO® Soil compaction model Soil datas and machines information ? Beet harvesting scenarios in sugar beet regions Soil humidity ? STICS® Soil/plant/weather model
  • 7. 7 Project Prévibest – Advice construction Historical soil compaction library TERRANIMO® STICS® 10 Years 11 types of soil 12 weather stations Machines datas > 5 000 000 simulations GOAL Strategic tool Levers of soil compaction reduction efficiency Risk areas depending beet harvest date
  • 8. 8 Project Prévibest – Field experimentations CHEVRIERES BOIRY Comparison of two crops rotation: WHEAT WHEAT WHEAT BEET BEET WHEAT PEA BARLEY BARLEY WHEAT Rotation with repeated soil compaction Rotation with one soil compaction at the beginning Beet Beet Field expérimentations results Yields, yield components, roots development, cultural profile, penetrometer, etc. Datas for decision making tool 2019 -> 2023
  • 9. 9 Project Prévibest – Tool functioning TERRANIMO® STICS® Farmer’s beet harvesting situation Levers that can be mobilized by farmers, tests of some solutions according to the farmers obligations Real time tool DIAGNOSIS Soil compaction analysis Surface at risk Agronomic issue Regeneration time IMPROVED SITUATION THANKS TO ADVICE Less soil compaction Less surface at risk Advice, alternatives
  • 10. 10 Stakes Contractors calendar Industry calendar Contractors beet harvesters Decision making tool ? Reasoning making tool Weather and soil variability Farmer’s equipment Soil compaction risk ‘model’ Take into consideration constraints and limits Bring lines of thinking
  • 11. 11 Conclusion PRÉVIBEST PROJECT Beet harvest context Field datas Soil compaction simulation Reasoning making tool Farmers, technicians, sugar-industry stakeholders Diagnosis Alternatives Consequences Take in consideration the risk of deep soil compaction during beet harvest
  • 12. 12 Thanks for your attention Project team : Thomas LEBORGNE (ITB), Damian MARTIN (AGT), Pierre DUL (ITB), Rémy DUVAL (ITB), Annie DUPARQUE (AGT), Vincent TOMIS (AGT), Cyril BLONDIN (Tereos), Francis BAZELAIRE (Tereos), Damien ANDRIEU (Tereos), Guillaume BRISSET (ITB) Scientific support : Mathieu LAMANDÉ (Univ. Aarhus) Hubert BOIZARD (INRAE retired)