Heating turf by underground warm air
- G.G. Fisher
Underground forced air has been developed as a means of improved soil warming. Perforated plastic pipes are placed at subsoil depth in a permeable soil profile, and regulated amounts of moist warm air are released to give uniform heating at the surface. Intermittent heating at levels up to 300 W/m2 produced a 10 C temperature rise in 48 hours. No damage to turf was noted following heat inputs up to 500 W/m2. Based on 3-year results, a system has been designed for rapid and, if necessary, prolonged heating of football fields combined with improved turf growth and surface drainage. Additional index words: Football fields, Plastic pipes.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1974. . Copyright 1974 by the American Society of Agronomy, Inc. and the Crop Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA