Abstract: In this study,the experiments of 4 layout styles of drip irrigation in the Turpan-Hami Basin were carried out so as to understand the effects of drip irrigation on grape (seedless white) growth and yield and provide the theoretical basis for grape water-saving irrigation in arid area. The traditional furrow irrigation was taken as the contrast,and the soil moisture content,leaf area index,aboveground biomass of grape were analyzed. The results showed that the distribution of soil moisture content for T2 was uniform,it achieved the field capacity in the main rhizosphere,the whole rhizosphere was moist,and the moisture content in topsoil was low,thus the soil evaporation was reduced. The distribution of soil moisture content for T3 was not uniform,the soil moisture content in rhizosphere was lower than the field capacity,and the rhizosphere could not be completely wetted. Thus,T2 was the most appropriate layout style for grape irrigation in such extremely arid area. Moreover,the leaf area index and the dry biomass of grape were in an order of T2>T1>T4>T3. There was no significant difference between theoretical and measured values when the logistic model was used to simulate the relationship between leaf area index and accumulated temperature,and there was a high linear correlation between the theoretical values and the measured values of net dry biomass of grape.

Key words: grape, drip irrigation, layout style, leaf area index, aboveground biomass, logistic function, arid area