结果表明，采取改垄向、带状间作、机械灭茬、增施农肥、配方施用化肥等综合培肥措施后，土壤有机质净积累0．023％，全氮净积累0．087％。
The results Showed that soil organic matter increased 0.023% after the synthetical amelioration method was used to it. The total N increased 0.087%.
通过砂滤管和尼龙网袋法研究了有机物料在砂土的腐殖化和矿质化规律，对该土壤有机质培肥及调控提出了建议。
The decomposition of organic matters were studied by porous and nylon-bag experiment, and then organic matter management was suggested.
通过对玉米残体培肥后土壤水浸提液的研究可知，培肥后土壤有机质的含量增加。
The organic contents of fertilized soil increased by the research of soil water extract.
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