本试验的目的:拟在透水不良的土壤条件下,找寻排水洗盐的方法。使透水不良土层以上的水分、盐分排出有所加速,它下边的水分、盐分上升得以延缓。采用深浅沟相结合的办法,进行排水洗盐,至能种植较耐盐的作物时,争取早日投入农业改良措施,以减少在排水洗盐过程中,土壤肥力的消耗,给作物发育创造有利条件。 The purpose of this experiment: intended to find ways to drain salt water under poorly permeable soil conditions. So that poor water permeability above the soil moisture, salt excretion accelerated, it below the water, salt rise can be delayed. Using the combination of shades and dips to drain salt and wash water and strive to plant more salt-tolerant crops, strive for early agricultural improvement measures in order to reduce consumption of soil fertility during salt washing and to create favorable conditions for crop development .