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NET IRRIGATION APPLICATION
IMPROVING IRRIGATION
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GWPA REGULATIONS
 
  Net Irrigation Application  
  Importance of Measuring the Applied Water
Determining that irrigation performance is meeting the leaching GWPA mitigation measure standard - that each irrigation for 6 months following the pesticide application apply no more than 1.33 times the net irrigation requirement - requires measuring the amount of applied irrigation water (net irrigation application). The following pdf downloads provide detailed information on measuring irrigation water when using the irrigation systems listed below.

PDF Downloads:
  1. Furrow Irrigation Systems
    - Known Ditch Flow Rate with Siphons (77 Kb)
  2. Furrow Irrigation Systems
    - Unknown Ditch Flow Rate with Siphons (228 Kb)
  3. Furrow Irrigation Systems
    - Valve discharging into a Group of Furrows (88 Kb)
  4. Furrow Irrigation Systems
    - Orchard Risers or "Pots" Discharging into Furrows (115 Kb)
  5. Furrow Irrigation Systems
    - Gated Pipe (147 Kb)
  6. Flood / Border Irrigation
    - Known Ditch Flow Rate with Siphons (77 Kb)
  7. Flood / Border Irrigation
    - Unknown Ditch Flow Rate with Siphons (226 Kb)
  8. Flood / Border Irrigation
    - Valve Discharging into Border (90 Kb)
  9. Sprinkler Irrigation
    - Solid-set Sprinklers (194 Kb)
  10. Sprinkler Irrigation
    - Hand-move Sprinklers (193 Kb)
  11. Microirrigation (91 Kb)
  12. Propeller Flowmeters
    - Ultrasonic / Doppler Flowmeters (332 Kb)
I need to improve my irrigation practices to comply with the GWPA Regulations. See Improving Irrigation Practices

Return to Leaching GWPA - What do I need to do?
 
 
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