High tunnels, also known as hoop houses, are relatively simple polyethylene-covered unheated structures that typically do not use fans for ventilation. Tunnels can be covered with one or two sheets of plastic; those covered with two have an air layer in between, thus offering better insulation and, consequently, more cold protection.
Organization |
Center for Crop Diversification |
Publisher |
University of Kentucky |
Published |
May, 2012 |
Material Type |
Written Material |