the soil potassium fixation was increased after dry and humid alternation. soil with higher potassium content had a higher fixation ability.
当土壤经过干湿以后,土壤会发生明显的固定钾作用,土壤含钾量越高,固定钾能力越强。
the characteristic of potassium fixation and release of the key paddy soils derived from different parent materials was studied by an simulation experiment and chemical methods.