| Apot experiment was conducted to study the water-consuming patterns of greenhouse pepper in dripping irrigation underneath mulching film, drip irrigation without mulching film and flood irrigation. The results indicated that the total water consumption and evapo-transpiration during pepper growth and the water consumption during different periods of pepper growth differed among different irrigating modes; in the order previously mentioned, the average daily water consumptions during pepper growth in the three irrigating modes were 1.78 mm, 2.64 mm and 3.09 mm, and the total water consumptions during pepper growth in the three irrigating modes were 162 mm, 240 mm and 281 mm. the ratios of evapo-transpiration to evaporation in irrigation without mulching film and flood irrigation, were 1.53∶1 and (0.92)∶1, respectively. The regression analysis of water consumption of greenhouse pepper and the water surface evaporation revealed that even in different irrigation modes did the water consuming models of greenhouse pepper using water surface evaporation as its reference had very good correlativity, especially in irrigation without mulching film in which the correlation coefficient was 0.834. |