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.
改造后的控制系统更规范、合理，自动化程度大幅度提升，极大提高了烧结矿质量和生产效率。
The control system is more normable and reasonable after improvement, automaticity, product quality and production efficiency of sinter mine are improved greatly .
灌水对土壤矿质氮、有机质和全氮含量无显著影响，但有利于土壤有机氮的矿化。
Also, irrigation had no obvious effect on the contents of mineral n, organic matter and total n, but it was beneficial to the mineralization of organic n.
灌水对土壤矿质氮、有机质和全氮含量无显著影响，但有利于土壤有机氮的矿化。
Also, irrigation had no obvious effect on the contents of mineral n, organic matter and total n, but it was beneficial to the mineralization of organic n.
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