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盐土种稻为盐土改良提供了一个新途径——改良与利用相结合,杭州湾头蓬垦区在新围的涂地上种稻,不仅水稻取得较好收成,而土壤脱盐熟化也收到一定效果。一、种稻后土壤盐分的变化根据三年来种稻过程中对土壤盐分变化进行系统观察表明,新围涂地第一年种稻的脱盐效果显著,尤其是在耕作层。如种植一季早稻后表土(0～10厘米)全盐量从2.45%
Saline and paddy rice provide a new way for salinization improvement. Combining improvement and utilization, Hangzhou Bayou reclamation area is planted with rice in Xinwei. Not only better yield is obtained in rice, but soil desalination and aging also receive some effect. First, the change of soil salinity after planting According to the systematic observation of the changes of soil salinity in the process of planting rice in the past three years, it shows that the desalination effect of the first year in the new landfill is remarkable, especially in the tillage layer. Such as planting a season after early rice topsoil (0 ~ 10 cm) total salt content from 2.45%