In the method of pot cultivating, the corn growth and change of water, salt and temperature were studied in saline soil under normal irrigation, fixed irrigation and alternate irrigation. The results showed: It was prominent that the effect of different irrigation treatments on corn growth and change of water, salt and temperature. In the course of growth, plant length and leaf area of normal irrigation were the biggest, fixed irrigation were the smallest in 3 treatment; water use efficiency and taproot of alternate irrigation were the biggest, fixed irrigation were the smallest in 3 treatment; the ratio of root to crown of alternate irrigation was the biggest, normal irrigation was the smallest in 3 treatment; soil temperature was more and more low with the increasing of soil depth, and the temperature of A irrigation treatment was lower than B treatment ; volumetric water content was more and more high with the increasing of soil depth; because of the reciprocity of evaporation and irrigation, soil electrical conductivity was irregular with the increasing of soil depth.
