ISHS Acta Horticulturae 191: Symposium on Protected Cultivation of Solanacea in Mild Winter Climates
HIGH DENSITY CULTIVATION, SOLAR ENERGY AND DOUBLE POLYETHYLENE SHELTERING TO IMPROVE THE TOMATO PRODUCTION IN APRIL IN TUNISIA |
| Authors: | B. De Muynck, R. Vandevelde, A. Mougou, H. verlodt |
| Abstract:
The production of tomatoes in greenhouses in Tunisia in April without using a heating system is very low and the fruits are of a bad quality. Heating ordinary greenhouses with fuel is too expensive. A double wall of polyethylene does increase the minimum air temperature with 2°C but temperature can still drop below the crucial level to ensure a normal developpement of plants and fruits. The use of radiant mulch ( sunstock system ) only gives good results when combined with a screen and an outside captor. To produce more and better fruits in April, an experiment has begun in 1983, at the ' Station d'Appui de Nebhana ' at Monastir ( Tunisia ), using a ' sunstock ' system in a double wall plastic greenhouse in which the tomatoes were planted at a high density. | |
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