ISHS Acta Horticulturae 228: IV International Symposium on Water Supply and Irrigation in the Open and under Protected Cultivation
INFLUENCE OF DIFFERENT IRRIGATION SYSTEMS ON GREENHOUSE TOMATOES |
| Authors: | K.S. Chartzoulakis, N.G. Michelakis |
| Abstract:
The following irrigation treatments were tested on greenhouse tomatoes: improved furrow irrigation; microtube irrigation. ( 5 l/h ); drip irrigation (2 l/h ); subsurface irrigation. Frequency and amount of water supplied were controlled by tensiometers, always maintaining the soil water potential at values higher than -0.02 MPa. The total water depth applied during the September-June period for each treatment varied, mainly as a function of the watering depth of each treatment and were respectively: 46 cm for furrow irrigation, 36 for microtubes, 29 for drip and 26 cm for subsurface irrigation. No total yield differences were found among the systems tested; monthly yields were sometimes lower with subsurface irrigation. The efficiency of applied water was higher with drip irrigation (47.7 kg/m3) and lower with furrows (27.8 kg/m3). | |
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