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为了研究土壤溶液中所进行的物理—化学平衡,需要一种方法能尽快地从土壤中汲出溶液,以使它较少地发生变化。与一定技术设备相联系的现行方法,大多是实验室法,在大田条件下很少应用。为了研究田间土壤溶液,我们运用渗漏器的原理,利用规格为30×40厘米的塑料显影盘(微型渗漏器—)和最大孔径为1.0—1.2微米φ—7型1a的陶瓷细菌过滤器(Bφ),做为田间渗漏器。
In order to study the physico-chemical balance that is going on in soil solutions, there is a need for a way to quickly remove the solution from the soil to make it less variable. The current methods associated with certain technical equipment, mostly laboratory methods, are rarely used under field conditions. In order to study the field soil solution, we used the principle of a seepage device, using a plastic developing disc (mini-leaking device) with a size of 30 × 40 cm and a ceramic bacteria filter with a maximum aperture of 1.0-1.2 μm φ-7 type 1a (Bφ), as a field leak.