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南丰县双田乡经过土壤普查有潜育性水稻土5000多亩。这些田大部分是山丘沟谷的坑、垅田和沿河两岸的低洼田,占全乡水田面积的40％多。其特点是通透性差,出现青泥层,土壤粘粒含量较高,土壤微团聚体的组成百分率较低;土壤化学特性以还原过程为主,致使土壤中还原物质相对积累,潜育化程度越高,还原物质积累越多;生物作用以嫌气分解为主。据分析这些土壤全氮含量
Shuangtian Township, Nanfeng County After a soil census there are 5,000 mu of paddy soil. Most of these fields are pits of hills and valleys, fields and low-lying fields along the banks of the river, accounting for over 40% of the paddy field in the whole country. It is characterized by poor permeability, the appearance of green clay layer, the high content of soil clay, the lower percentage of soil micro-aggregates; the chemical characteristics of the soil are mainly the reduction process, resulting in the relative accumulation of reducing substances in the soil, The higher the accumulation of reducing substances, the more the biological function is to disagree. According to analysis of these soil total nitrogen content