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IRRIGATION. Rick Schlegel Agricultural Engineer USDA - NRCS OKLAHOMA. HOW IS OKLAHOMA NRCS ASSISTING WITH IRRIGATION AND SAVING WATER?. INSTALLING MORE EFFICIENT IRRIGATION SYSTEMS DEVELOPING IRRIGATION WATER MANAGEMENT PLANS

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IRRIGATION


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    1. IRRIGATION Rick Schlegel Agricultural Engineer USDA - NRCS OKLAHOMA

    2. HOW IS OKLAHOMA NRCS ASSISTING WITH IRRIGATION AND SAVING WATER? • INSTALLING MORE EFFICIENT IRRIGATION SYSTEMS • DEVELOPING IRRIGATION WATER MANAGEMENT PLANS • PROMOTING IRRIGATION SCHEDULING USING EVAPOTRANSPIRATION (ET) • PROMOTING WELL DECOMMISIONING

    3. HOW CAN WE MAKE SYSTEMS MORE EFFICIENT? • CONVERTING FROM LESS EFFICIENT FURROW OR SIDE ROLL IRRIGATION SYSTEMS TO MORE EFFICIENT CENTER PIVOTS OR LINEAR SYSTEMS • CONVERTING LESS EFFICIENT SPRINKLER SYSTEMS TO GREATER EFFICIENCIES OR REPLACING WITH SUBSURFACE DRIP SYSTEMS

    4. GENERALLY SPEAKING, WHAT TYPES OF INEFFICIENT SYSTEMS ARE WE REPLACING? • Furrow Systems • Hand Move Systems • Side Roll Systems • Conventional Impact Systems • Conventional Spray Systems

    5. FURROW IRRIGATION

    6. FURROW IRRIGATION USING SIPHON TUBES

    7. FURROW IRRIGATION USING GATED PIPE AND SURGE VALVE

    8. Furrow Irrigation Using Collapsible Gated Pipe

    9. Hand Move Sprinkler System

    10. CONVENTIONAL SIDE ROLL IMPACT SPRINKLER Side Roll Sprinkler System

    11. CONVENTIONAL IMPACT

    12. CONVENTIONAL SPRAY

    13. WHAT TYPES OF SYSTEMS ARE WE PROMOTING TO REPLACE THE OLDER LESS EFFICIENT SYSTEMS? • LEPA - Low Energy Precision Application • LESA - Low-Elevation Spray Application • LPIC - Low Pressure In-Canopy • MESA - Mid-Elevation Spray Application • Subsurface Drip Irrigation Systems

    14. LEPA & LESA IRRIGATION SYSTEMS

    15. LEPA SYSTEM

    16. LEPA SYSTEM

    17. LESA SYSTEM

    18. LPIC & MESA IRRIGATION SYSTEMS

    19. LPIC SYSTEM

    20. MESA MESA SYSTEM

    21. USDA-NRCS Sprinkler Certification Requirements CPED PROGRAM USDA-ARS developed the computer program CPED needs a pivot design printout from the manufacturer for input data CPED is used to certify the Coefficient of Uniformity (CU) of the pivot

    22. OTHER SYSTEM IMPROVEMENTS • INSTALLING PRESSURE REGULATORS • INSTALLING FLOW METERS • INSTALLING CHEMIGATION VALVES • WELL DECOMMISSIONING

    23. PRESSUREREGULATORS

    24. PRESSURE

    25. FLOWMETER

    26. CHEMIGATION VALVE

    27. WELL DECOMMISSIONING

    28. DRIP IRRIGATION SYSTEMS

    29. Drip Tapes

    30. DRIP LINES PLOWED IN

    31. FILTER SYSTEM

    32. DEVELOPING IRRIGATION WATER MANAGEMENT PLANS

    33. IRRIGATION SCHEDULING USING EVAPOTRANSPIRATION ( ET )

    34. ET GAGE

    35. EVAPOTRANSPIRATION USING THE OKLAHOMA MESONET

    36. MESONET SITE

    37. QUESTIONS ?