采用好气土壤培养试验，研究了尿素配施有机物料和DCD条件下土壤不同氮库的动态。
Dynamics of different soil nitrogen pools after application of urea with DCD or organic materials were studied by aerial incubation method.
结果表明：该农户生态系统能量和物质的投入均以有机为主，农田土壤库中氮、磷、钾均有盈余。
Results showed that energy and materials input were mainly organic. There were surplus of nitrogen, phosphorus and potassium in the farmland soil pool.
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