浙南沿海海涂,土壤含盐较高,质地一般比较粘重。筑堤拦潮脱水后,土壤僵死,难于糊化。根据观察,在上水进行人工翻掘并泡田7—9天后,土块仍不糊化,基本保持泡田前的形状,呈现一片卵石状的“泥巴钉”。这种砾石状的耕作层,不但泡田洗盐的效果较差,而且也难于固秧,并有碍根系的生育。在插秧以后,随着“泥巴钉”的逐渐 Sea coast south of Zhejiang, soil salt is higher, the texture is generally more sticky. After the embankment barricade dehydration, soil zombie, difficult to gelatinize. According to the observation, artificial excavation in Sheung Shui and frothing 7-9 days after the soil block is still not gelatinized, basically maintaining the shape of the field before the bubble, showing a pebble-like “mud nail.” This gravel-like tillage layer, not only the effect of salt water washing salt pond is poor, but also difficult to transplanting, and hinder root growth. After transplanting, with the “mud nail” gradually