Nitrate leaching to groundwater is one of the major nitrogen losing ways in dryland farming system. The major season of nitrate leaching is rainy season in summer as corn growing, with strong intensity of rainfall (from July to September) in the Loess Plateau region. Localized compaction ridge fertilization method is a nitrogen fertilizer application that has theoretical basis on the water flow barrier and local ridge tillage, and it is assumed that less fertilizer leaching would occur. In this paper, the ...