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过去,巴盟黄灌区在没有排水的情况下曾经大种水稻,结果造成大面积土壤盐碱化。现在,许多地方兴建了排水工程。在排灌工程配套的条件下,黄灌区能不能种水稻呢?前几年巴盟盟委搞的种稻洗盐试点证明,只要灌水方便,排水确实畅通有路,种稻洗盐改土的效果非常显著。在弃耕的盐碱地上,种稻前0～50厘米土层的含盐量是0.5—1.4%,有的达2.3%,经过一年种稻洗盐,土壤盐分显著减少,平均脱盐率达65.6%(见附表)。
In the past, large areas of paddy soil had been salinized due to large-scale paddy cultivation in the Yellow Irrigation Area of Bameng without drainage. Drainage works are now built in many places. Irrigation conditions in the irrigation and drainage projects, the Yellow Irrigation Area can grow rice it? A few years ago, the League of Nations commissioned the rice varieties of salt washing pilot proved that as long as the irrigation is convenient, drainage is indeed smooth, the effect of rice washing salt Very significant. On abandoned saline soil, the salinity of 0-50 cm soil layer before planting rice is 0.5-1.4%, and some reach 2.3%. After one year of rice washing, the salinity of soil is significantly reduced and the average salt rejection rate is 65.6 %(See Schedule).