1. © Irrigation Association Designing for Chemigation Equipment

2. Seasonal N Uptake -%- May | June | July | August | Sept | April 0 25 50 75 100 Nitrogen Uptake - % of TotalIncremental Additions of Nutrients 70-75% Benefits of chemigation

3. Problem #1 Irrigation pump shuts down Injection pump continues to run

4. Problem #2 Unexpected shut down of irrigation system

5. Problem #3 Injection line check valve failure

6. © Irrigation Association Chemical Injection Equipment

7. Chemigation Injection Installation

8. © Irrigation Association Understanding the Types of Components Backflow prevention Injection system Corrosion and precipitates

9. © Irrigation Association Commercial Chemigation Valve

10. © Irrigation Association Check Valve Cut-Away

11. © Irrigation Association Packaged Venturi System

12. © Irrigation Association

13. Understanding the Types of Components, cont. Storage Valves and fittings Sensors and controls

14. © Irrigation Association Spill Containment

15. © Irrigation Association Chemical Overflow Due to Injector Check Valve Failure

16. © Irrigation Association Understanding the Importance of Uniformity The impact of end guns in unregulated systems The impact of intermittent end guns and corner systems

17. © Irrigation Association Coordinating Application Dosage and Pivot Speed

18. © Irrigation Association Understanding Regulatory and Safety Requirements

19. System hydraulics change with intermittent end gun