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对辽宁省北部、中部及南部的棕壤型菜园土１５对肥、瘦地的保Ｐ供Ｐ性能的测定表明，在绝大多数供试土样中，肥地及其各粒级微团聚体的全Ｐ量、Ｐ解吸量及Ｐ解吸率均大于瘦地及其各相应粒级微团聚体的，Ｐ吸附量则相反．不论肥地或瘦地，＜１０μｍ微团聚体均比＞１０μｍ微团聚体具有更大的Ｐ吸附能力．供试菜园土的＜１０μｍ微团聚体亦具有较大的供Ｐ潜势，其Ｐ解吸率比其他农用土壤相同粒级微团聚体的大１个数量级．
In the northern, central and southern Liaoning Province, 15 pairs of brown soil garden soil fertilizer, thin P for P-performance determination showed that in most of the test soil samples, fertilizers and its various particle size microaggregate The total P content, P desorption amount and P desorption rate were all greater than those in the lean and its corresponding fractions, while the P uptake was the opposite. Both <10 μm microaggregates have greater P adsorption capacity than> 10 μm microaggregates, either fatally or thinly. The <10μm microaggregates in the garden soil also had larger potential for P adsorption, and the P desorption rate was one order of magnitude larger than that of other microaggregates of agricultural soil.