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１９８４～１９８６年在盘锦地区轻度盐渍型水稻土上设置试验。结果表明，埋设泥烧瓦管排水效果优于传统的明沟排水，主要表明在降低地下水位和地下水矿化度，提高土体脱盐效果，暗管排水比明沟排水稻谷增产９．１～１８．０％。暗管埋深０．８～０．９ｍ，暗管间距视土质而定在１０～２０ｍ。本试验为滨海盐渍土稻区引进这一新技术提供了科学依据。
From 1984 to 1986, experiments were set up on mild saline soil in Panjin. The results show that the effect of buried mud pipe is better than that of traditional open ditch drainage. The main results show that in the process of reducing the groundwater level and the salinity of groundwater and the desalination effect of soil, the underground pipe drainage increases 9.1 ~ 18.0 %. Buried depth of 0.8 ~ 0.9m, dark tube spacing depending on soil quality in the 10 ~ 20m. This experiment provides a scientific basis for the introduction of this new technology in coastal saline soil.