ISHS Acta Horticulturae 691: International Conference on Sustainable Greenhouse Systems - Greensys2004
USE OF ADAPTED ENERGY SCREENS IN TOMATO PRODUCTION WITH HIGHER WATER VAPOUR TRANSMISSION |
| Author: | H.F. Plaisier |
| Keywords: | screens, energy saving, glasshouses, tomato, air humidity |
| Abstract:
Energy saving screens contribute a lot to the reduction of the energy use in glasshouses. Most modern glasshouses are already equipped with one or more energy screens. However, some growers still hesitate to use them, because they are afraid for the negative influence of these screens on the growing conditions for the crop. This is especially true for tomato growers, who dislike increases in air humidity due to the use of screens. In 2003 Svensson introduced a range of energy screens with a higher water vapour transmission by means of small, evenly distributed openings. The results, both in small- as well as large scale trials, show that these screens have little or no effect on the air humidity, while keeping the energy saving value at a relatively high level. It is expected that the use of energy screens among tomato growers will be increased considerably and consequently the energy use will be reduced. | |
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