INFLUENCE OF DIFFERENT IRRIGATION SYSTEMS ON GREENHOUSE TOMATOES
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).
Chartzoulakis, K.S. and Michelakis, N.G. (1988). INFLUENCE OF DIFFERENT IRRIGATION SYSTEMS ON GREENHOUSE TOMATOES. Acta Hortic. 228, 97-104