第一报中已说到未耕地土壤变为农地土壤的转移情况,从栽培普通作物的土壤看出旱地熟化过程。但在茶园中尽管茶树和土壤长期交互作用(或者由于施肥管理的影响),旱地熟化过程几乎没进行,仍停留在未熟化状态,或者一部分还产生退化的倾向,而使茶园土壤性质成为比森林土壤还强的现象。本报采用以第三纪砂岩为母质的土壤作为实验材料,继续对前报提出的土壤旱地熟化过程的停滞状况及其退化现象,作进一步的研究。一、实验材料:本报告采用的实验土壤 The first report said that the conversion of uncultivated land into agricultural land and the conversion of dry land to cultivated land from ordinary crops were observed. However, in the tea plantation, although the long-term interaction between tea tree and soil (or due to the influence of fertilization management), the dry-land ripening process hardly progressed, remained in the uncured state, or part of it also tended to degenerate, The phenomenon of soil is also strong. The paper uses the soil of the third generation of sandstone as the parent material as the experimental material, continue to advance the proposed dry soil aging process of the stagnation and its degradation phenomenon for further study. First, the experimental material: The experimental soil used in this report