比较两种质地土壤，在相同容重下在砂壤中PCE的饱和度较重壤土中的大。
The PCE saturation in clay sandy was higher than that in the clay loam at the same bulk density.
土壤全磷与PSD(土壤磷饱和度)有很好的正相关性。
Total phosphorus of surface soil had a significantly positive relation with PSD.
土壤的吸磷能力与土壤活性铁铝和有机质含量呈正相关，与磷吸持饱和度呈负相关。
P adsorption capacity of the soil is positively correlated with its oxalate-extractable iron and aluminum and organic matter contents and negatively correlated with P adsorption saturation degree.
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