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我区交城、文水、汾阳、孝义等县,共有盐碱地31万多亩,占平川耕地的23％,改良和利用这些盐碱地,对提高农业生产有很大意义。文水县对盐碱地棉田进行地膜覆盖试验,结果表明,盐渍化程度中度以下的棉田,地膜覆盖后可保苗8成以上,产量成倍增长。据1982年对全县93个盐渍化程度不同的覆盖点(共120多亩)调查,覆盖后平均亩产皮棉80-130斤,比不覆盖增产3-4倍。
The districts of Jiaocheng, Wenshui, Fenyang and Xiaoyi counties have a total area of more than 310,000 mu of saline-alkali land, accounting for 23% of the cultivated land in Pingchuan. To improve and utilize these saline-alkali lands is of great significance to agricultural production. Wenshui County of saline-alkali cotton field mulching test results showed that the degree of salinization below the cotton fields, plastic mulching seedlings can cover more than 80%, the output doubled. According to a survey of 93 salinization points covering a total area of 120 mu in 1982 in the county, the average yield of lint after covering 80-130 jin is 3-4 times higher than that without covering.