Stateofart on Precision Sprayers

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State-of-arton Precision Sprayers

• Mikkel Nilars
• Cand Agro, M.Sc.
• Product Manager
• HARDI INTERNATIONAL

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How and why IT in agriculture

• GPS
• Guidence
• Farm Management
• Documentation
• Steering
• Precision Farming
• Entertainment
• Decision Support
• Sprayer Control
• Spray Management
• Fleet Management

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What can get the farmer to invest in new
technology?

• Money!
• Safe time (Capacity)
• Ensure a good result
• Timing (Capacity)
• Dose
• Avoid penalties

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Precision Farming Management Cycle
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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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What is precision in plant protection?
Gadedamsmark at Bramstrup

• Right Dose
• Right Place
• Optimal Time

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Weedseeker
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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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Boom Management System (HARDI)

• Sensors on the boom
• Keeps the boom parallel to the terrain

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Boom Height Management

• Ultrasonic sensor
• Troubles with crop/no crop situations

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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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HARDI EZ-GUIDE - USA
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HARDI EZ-guide - possible patterns
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DGPS based navigation
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GPS LPS

• GPS steering
• Local Positioning System (LPS)
• To get high precision in tramlines without
  expensive RTK GPS
• Two Cameras
• 3-dimensional or colour difference

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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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Auto Section Control
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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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Headland Assist
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Auto Wash
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Auto Wash
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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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HARDI HC 5500 controller
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Palm PC
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ISO Terminals
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Applying the right dose - site specific

• How do we change dose?
• Change speed / volume rate
• Not practical
• Most systems are proportional
• Change pressure / volume rate
• Possible within the nozzles pressure limits which
  means /- 25 (TWIN /- 40)
• Water volume follows chemical concentration
• Change chemical concentration
• Injection systems
• More products at the same time

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What is precision in plant protection?

• What is precision in spraying?
• Scale (Field / Spot / Single Plant)
• Boom Height Management
• Steering
• Section Control
• Intelligent features
• Site Specific Application
• Direct injection

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Direct injection, Giesegaard 1998
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Injection systems
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Injection point
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Response time

• Delay in the system
• The time from the system orders a dose change to
  the change actually happens at the nozzle - we
  normally measure in meters

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RAU CERBERUS
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Comparison
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Lechler Vario
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THANK YOU!!
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Direct injection on suction side
Water
Pressure regulation
Pumps
Boom sections
Pesticide
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Direct injection on pressure side
Injection chamber
Pressure regulation
Sprayer tank
Water
Pumps
Boom sections
Pesticide
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Direct injection at the nozzles
Sprayer tank
Pressure regulation
Water
Pumps
Boom sections
Pesticide