|Author:||Leinauer, B. ; Sallenave, R. ; Schulz, H.|
|Book Group Author:||NA|
Subground irrigation systems, also known as subirrigation systems, apply water laterally to turfgrass root zones from perforated tiles buried below the normal depth of root penetration. In this study, we compared Cellsystem, a subirrigated straight sand system to a standard United States Golf Association (USGA) and its corresponding sprinkler irrigation system. Both systems describe construction types for athletic fields and other confined turfgrass areas. We hypothesized that subirrigated construction types, such as Cellsystem, save substantial quantities of irrigation water and would provide uniform water distribution compared to standard construction types with sprinkler systems (e.g. USGA system). Research was conducted at Hohenheim University in Stuttgart, Germany over two growing periods (1994 and 1995) to investigate the effects of construction and corresponding irrigation type (Cellsystem vs. USGA type) on overall water use and on drought stress, soil moisture, turf quality, and drought avoidance, of Agrostis stolonifera 'Penncross', Festuca rubra subsp. trichophylla 'Barcrown', and Poa supina 'Supra'. Turf grown on subirrigated Cellsystem had significantly lower crop water stress indices and significantly greater root mass in soil depths greater than 100 mm. Volumetric water content in the upper 100 mm of the root zone in the Cellsystem plots was significantly higher than sprinkler irrigated plots, while overall irrigation water use in the sprinkler irrigated USGA plots was significantly higher compared to the subground irrigated plots. Of the three turf species tested, F. rubra subsp. trichophylla showed the highest drought stress tolerance, followed by A. stolonifera; P. supina exhibited the lowest drought stress tolerance. The study demonstrated that the subground irrigated Cellsystem is a practical and water saving alternative to systems constructed to USGA standards with sprinkler systems.
|Pages:||123 - 129|
drought, drought resistance, irrigation, irrigation systems,lawns and turf, plant water relations, quality, roots, soil depth, soilwater, sprinkler irrigation, water stress, water use, Germany, Agrostisstolonifera, Festuca rubra, Poa supina, Agrostis, Poaceae, Cyperales,monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes, Festuca,Poa, Festuca rubra, Western Europe, Europe, Developed Countries,European Union Countries, OECD Countries, drought tolerance, Festucarubra subsp. trichophylla, lawns and sports turf, soil moisture, sprayirrigation, watering, Horticultural Crops (FF003) (New March 2000),Plant Water Relations (FF062), Environmental Tolerance of Plants(FF900), Soil Physics (JJ300), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management],Composition and Quality of Non-food/Non-feed Plant Products (SS230)