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Sub-Surface Drip Irrigation

Sub-Surface Drip Irrigation. Using Water Precisely When Water is Scarce. By: Cody Konen. Introduction of Sub Surface Drip. First introduced in U.S. in 1960 (Dew Hose) Has become very popular since 1995 Showed significant advantages Increased Water Use Efficiency Less water required

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Sub-Surface Drip Irrigation

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  1. Sub-Surface Drip Irrigation Using Water Precisely When Water is Scarce By: Cody Konen

  2. Introduction of Sub Surface Drip • First introduced in U.S. in 1960 (Dew Hose) • Has become very popular since 1995 • Showed significant advantages • Increased Water Use Efficiency • Less water required • Precise placement of water and nutrients to plant roots

  3. Basic Layout

  4. Installing Tape (Dripper line)

  5. Tape to PVC connection (Low End)

  6. Pump House • Close to water source and pumped by diesel or electric motor • Filter arrangement chosen by GPM of system • Fertilizer injection, and or acid injection • Final filter to catch fine particles

  7. Top end connection (Filters)

  8. Field valves

  9. System Controlling

  10. Using less water • Depending on field size decides your water rate, zone size, and how many zones in the field • Inches of water applied per hour = (0.00221) X (flow rate, in GPM) / (# acres) • Lot more knowledge of where we are applying and how much than previous method of irrigation

  11. Operation • Usually runs at least 10 days on normal year, on a hotter year may never shut it off • During this operation, we can fertilize crops with nutrients besides phosphorus due to our pH of water and contents will not mix • Apply chlorine for prevention of clogging each emitter • Weekly flushing of PVC and tape lines from debris

  12. Water Patterns

  13. What Clogged Emitters Look Like and What They Can Do

  14. Overall Opinion • Uses less water and less labor while keeping the same or better yields • Very expensive initial cost on a per acre basis • Only way we can no-till our crops used from this water source.

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