an introduction to subsurface drip irrigation ssdi

AN INTRODUCTIONTO

SUBSURFACE DRIP IRRIGATION

SSDI

GEOFLOW 1-800-828-3388 www.geoflow.com

Program

How it works The advantages of and when to use SSDI A few examples Geoflow Products

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Drip irrigation125 year ago

How it Works

½” dripline grid is buried 15 to 60 cm. deep where it slowly and evenly places effluent into the soil.

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Pulsed SSDD Water & Soil

By courtesy of the USDA, Fresno

Subsurface Drip uses 40% greater volume of soil than surface drip

Steep Slope65% Slope

Alpine Club, Mt. Tamalpais

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Flexibility Around Obstacles

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Shallow SoilsPalm Island, Dubai

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Re-use in the Landscape Carmel Valley Hotel

Designed byQuesta Engineering

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Municipal ReusePauanui Effluent Irrigation System

ACENZ Annual Awards of Excellence 2010

Olives in Spain

Hops Field in Yakima Valley, Washington.

Zinfandel grapes in Lodi, California (Mondavi)

Note vertical trellis

Asparagus - California

Citrus – Calabria, Italy

Three Research Projects

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Fig. 1. Tomato crop exposed to ambient (left) vs. enriched (right) CO2 levels

Methane – CH4 -- > CO2 H2O O2 H2Methane (CH4) is a greenhouse gas that remains in the atmosphere for approximately 9-15 years. Methane is over 20 times more effective in trapping heat in the atmosphere than carbon dioxide (CO2) over a 100-year period

EucalyptusForest Research Institute, New Zealand

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Community DevelopmentOmaha Beach Golf Course, N.Z.

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State ParkAngel Island, San Francisco Bay

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Geoflow Dripline ProductsNano-ROOTGUARD®• Balan® impregnated emitters prevents root

intrusion• When used with the ADI and Vered drippers

15 year warranty / 30+ year expected life

Patents:Nano-ROOTGUARD – 6,821,928 B2ROOTGUARD – 5,116,414

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WASTEFLOWTwo pink stripes and turquoise

inner lining

Bactericide treated turquoise inner lining

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• Nano-ROOTGUARD® Prevents roots from plugging dripline • GeoShield Prevents bacterial growth in the lines

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Our Unique products

• Geoflow Wasteflow dripline• Geoflow ROOTGUARD dripline • GeoShield filters

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Geoflow Dripline ProductsROOTGUARD®

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Root-ball around dripper

Roots Exposed. ……No roots found in dripline

U = UntreatedT = Treated

• When roots make contact with ROOTGUARD, root growth is redirected.

• Non-systemic.

GEOFLOW Photograph by courtesy of Fresno State University

Geoflow Dripline ProductsROOTGUARD® as a root barrier

Patents:Anti-bacterial lining for drip irrigation laterals – 5,332,160Low friction lining for drip irrigation conduits – Provisional – not published

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Geoflow Dripline Products

GeoShield®• Combats Slime from plugging system• Anti-bacterial (TBT-M) in the dripper•Anti-bacterial (TBT-M) in the turquoise lining

of the drip tube•A smooth release agent inside the dripline

containing Viton® (similar to Teflon) discourages organics from sticking.

Metzerplas drippers available to Geoflow Turkey in WASTEFLOW® and ROOTGUARD®

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Geoflow Filter Products

GeoShield®• Protects filter element from slime build up• Reduces surface blinding• Available in pre-assembled headworks• Automatic self flushing or manual flush

Thank you

Rodney Ruskin