© irrigation association designing for chemigation equipment
TRANSCRIPT
© Irrigation Association
Designing for Chemigation Equipment
Seasonal N Uptake -%-
May| June| July| August| Sept|April0
25
50
75
100
Nit
rogen
Up
take
- %
of
Tota
l
IncrementalAdditions of
Nutrients
70-75%
Benefits of chemigation
Problem #1
• Irrigation pump shuts down• Injection pump continues to run
Problem #2Unexpected shut down of
irrigation system
Problem #3Injection line check valve
failure
© Irrigation Association
Chemical Injection Equipment
Chemigation Injection Installation
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Understanding the Types of Components
• Backflow prevention
• Injection system
• Corrosion and precipitates
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Commercial Chemigation Valve
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Check Valve Cut-Away
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Packaged Venturi System
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© Irrigation Association
Understanding the Types of Components,
cont.
• Storage
• Valves and fittings
• Sensors and controls
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Spill Containment
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Chemical Overflow Due to Injector Check Valve
Failure
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Understanding the Importance of
Uniformity
• The impact of end guns in
unregulated systems
• The impact of intermittent
end
guns and corner systems
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Coordinating Application Dosage and Pivot Speed
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Understanding Regulatory and Safety
Requirements
System hydraulics change with
intermittent end gun