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在黑龙江省绥化地区西部,分布着大片的苏打盐碱土,其中多属轻、中度性质。这种土壤农业生产特性不良,土质粘重发朽,可塑性、粘结性、粘着性较大,通透性差。排水不畅,土温低,易旱易涝,影响着农作物的正常生长。为了改良这种土壤,绥化行署水利局科技科组织有关人员自1983年至1986年在肇源县中心灌区进行了种稻泡田冲洗脱盐的小区试验,取得了显著效果。脱盐率达21.46％—44.74％,水稻增产幅度为12.3％—40％。最高亩产水稻900斤。在试验中,他们总结出两个重要问题。
In the western part of Suihua in Heilongjiang Province, a large area of soda ash and saline soils are distributed, most of which are light and medium in nature. This poor soil agricultural production characteristics, soil sticky hair rot, plasticity, cohesion, adhesion, permeability is poor. Poor drainage, low soil temperature, easy drought, affecting the normal growth of crops. In order to improve this kind of soil, the relevant department of Science and Technology Branch of Suihua Administrative Bureau of Water Resources conducted a plot test of desalination with rice paddy field irrigation in the irrigation area of Zhaoyuan County from 1983 to 1986, and achieved remarkable results. Desalination rate of 21.46% -44.74%, rice yield by 12.3% -40%. The maximum yield of 900 kg of rice. In the experiment, they summed up two important issues.