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通过室内培养与田间长期定位试验，研究了有机肥料及有机─无机肥料配合施用对土壤供磷的影响。结果表明，黄潮土经15年连年施用有机肥料后，土壤速效磷大幅度提高，土壤中活性、中等活性和中稳性有机磷对提高土壤供磷水平有不同程度的作用；施用猪粪等有机肥料，土壤中磷酸酶和生物量磷活性提高，从而改善了作物的磷素营养。
Through indoor cultivation and long-term field experiment, the effects of organic fertilizer and organic-inorganic fertilizer on soil phosphorus were studied. The results showed that after 15 years of continuous application of organic fertilizers in Huangchao soil, available phosphorus in soil increased significantly, while active, moderately active and moderately stable organic phosphorus in soil had different degrees of effect on increasing soil P supply. The application of organic fertilizer such as pig manure , Soil phosphatase and biomass phosphorus activity increased, thereby improving crop phosphorus nutrition.