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土地盐碱化是河套灌区、土默川大小黑河灌区和黄灌区农业生产上存在的一大问题,盐碱化面积一般占耕地40～50％,有的高达50％以上,如河套灌区一九七三年普查,盐碱化面积占耕地面积的58％。盐碱化了的耕地,仅能抓苗7～8成、5～6成、2～3成,甚至不能抓苗。因此,调查研究和总结推广在这些地区改良盐碱地的有效措施,对促进农业生产大上快上,尽快普及大寨县,有着重要的作用。
Land salinization is one of the major problems in agricultural production in Hetao, Tumochuan, Heihe and Huanggu irrigation areas. The salinization area generally accounts for 40-50% of the arable land, and some as high as 50% or more. For example, In the census of the seventy-three years, the area of salinization accounted for 58% of the arable land. Salinized arable land, only grasping 7 to 8 percent, 5 to 6 percent, 2 to 3 percent, or even can not grasp the seedlings. Therefore, it is of great significance to investigate and summarize the effective measures to promote the improvement of saline-alkali land in these areas. This will play an important role in promoting the rapid development of agricultural production and popularizing Dazhai County as soon as possible.