Abstract:Field experiment of border irrigation of summer maize was conducted to analyze the effect of border fertigation model on crop growth as well as soil water and nitrogen, evaluate the irrigation fertilization quality and water using efficiency under different treatment, and investigate suitable model of border fertigation. Different border width, fertilization timing, and inflow cutoff were selected in the field experiment, and the optimum level combination of fertigation was selected by orthogonal design.The results showed that the influence of different treatment on storage efficiency of soil water and nitrogen are not significant, but the effect on soil nitrate uniformity is obvious and it is same to soil water. The storage efficiency of soil water (59%~63%) were lower than that of soil nitrogen (61%~64%) while the uniformity of soil water (95%~99%)were higher than that of soil nitrogen (85%~94%). The yield and water using efficiency were significant affected by border width, timing of fertilization and inflow cutoff. Considering all the indexes, the border fertigation model with the border width of 1.5 m, the inflow cutoff of 95%, and applying fertilizer as water advanced at 1/2 of the border length showed higher storage efficiency(63.36% and 64.01%) and uniformity (98.71% and 94.42%) of soil water and nitrogen, was benefit to form a uniform soil condition for crops absorption and uptake, and could achieve a higher yield (9 886.1 kg/hm2) and water using efficiency(2.62 kg/(hm2·mm)).