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Precision Technology Use of Ag. Subsurface Tile Drainage Systems. Samantha Ambrose SOIL 4213. Introduction. What is tile and how does it work? The old days Today’s technology. What is tile?. Originally clay pipes Slotted, flexible plastic tubing 7.5 to 46 cm diameter
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Precision Technology Use of Ag. Subsurface Tile Drainage Systems Samantha Ambrose SOIL 4213
Introduction • What is tile and how does it work? • The old days • Today’s technology
What is tile? • Originally clay pipes • Slotted, flexible plastic tubing • 7.5 to 46 cm diameter • Removes excess water from the root zone 24 to 48 hours after a heavy rain Image from: http://www.abalonwpg.ca/weepingtile.htm
How does it work? Header tile Lateral tile Image from: http://www.extension.umn.edu/distribution/ cropsystems/dc7740.html Adapted from: http://www.omafra.gov.on.ca/english/engineer/facts/10-091.htm Tile outlet Open ditch
Installation Variables • Topography • Crops • Soil texture • Spacing • 15 to 40 meters • Depth • Placed 0.9 to 1.2 meters
Installation-Then • Clay pipe: 5,000 BC • Hand tools used for installation • 1906: 3 ft deep, $2.42 per 100 ft
Installation-Then • Machine Trenching • 1906: $1.24 per 100 feet http://www.ag.ndsu.edu/waterquality/documents/History_of_Drainage.pdf
http://www.ag.ndsu.edu/waterquality/documents/History_of_Drainage.pdfhttp://www.ag.ndsu.edu/waterquality/documents/History_of_Drainage.pdf
Installation-Now • Contractors • GIS/AGPS • Soil maps • Contour maps • Aerial photographs • Field history is essential www.heartlandaggroup.com
AGPS-Pipe Pro • Calculates tile depth and slope during installation • RTK GPS uses Vertical Curve Technology (VCT) • Real time guidance with grid control that reduces flagging
Summary • Tile drainage installation has come a long way in the past 100 years • Potential for more improvement with new technology
Thank you Questions?