Abstract:In order to popularize the technology of planting maize in double row at one wide ridge with mulch-drip irrigation, effects of irrigation scheduling on the growth, yield and water use efficiency(WUE) were studied in this paper with ‘Jundan 20’ and ‘Liaodan 535’ as the test crops. The results showed that vegetative growth and yield components varied significantly between the two varieties. However, stem length, leaf area indexes(LAI), the fresh weight and dry weight of the matter above ground, ear length, ear coarse, kernels per spike, spike grain weight of the same variety were promoted while the length of barren ear tip decreased by controlled irrigation. Moreover, yield and WUE were both increased by controlled irrigation, yield of ‘Jundan 20’ and ‘Liaodan 535’ increased by 11.6% and 8.8% separately while WUE increased by 22.1% and 19.1%. Therefore, the technology of double row at one wide ridge with mulch-drip irrigation would be better used if the technology of controlled irrigation was combined.