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Home → Publications → Forest Nursery Notes → 2009 Winter Forest Nursery Notes → 2009 Winter Forest Nursery Notes - New Nursery Literature → Effects of Insultating and Shading Liquid Foam Injected Between Double Polyethylene Films on Greenhouse Microclimate and Productivity of Tomato Crop

Effects of Insultating and Shading Liquid Foam Injected Between Double Polyethylene Films on Greenhouse Microclimate and Productivity of Tomato Crop

Aberkani, K. and Gosselin, A. International Plant Propagators' Society, combined proceedings 2007, 57:390. 2008.

Greenhouse growers invest considerable sums to maintain adequate growing conditions in the winter. On the other hand, excess light and temperature in summer are major concerns that can reduce productivity in the greenhouse enclosure. The infusion of liquid foam between two polyethylene films (SUNARC technology) used as greenhouse covering materials is an innovative and promising method of increasing thermal insulation in the winter and can contribute to creating a favourable microclimate in the summer. Two greenhouses were used in this experiment: (1) a control greenhouse; and (2) a prototype greenhouse utilising SUNARC liquid foam technology. The first experiment (winter and early spring) consisted of injecting liquid foam between the two polyethylene films during the night to increase the thermal insulation of the greenhouse and reduce energy consumption. In the second experiment, this technology was used during the summer as a shading method.


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Author(s): K. Aberkani, A. Gosselin

Section: Nursery Structures and Equipment