Nitrogen application and NDSA fertilization had slightly effect on the soluble sugar content in celery, but DCD could significantly increase it.

施氮和ndsa施肥法对芹菜可溶性糖影响不大，但添加dcd可明显增加芹菜的可溶性糖含量。

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The effects of a new fertilization method-NDSA(nitrogen depot with saturated ammonium) on the loss of nitrogen from ammonia volatilization and N leaching were studied by imitation experiments.

采用室内模拟氨挥发和模拟降雨土柱淋洗方法，研究了NDSA（饱和铵贮库）施肥法对降低氨挥发和氮素淋失的作用。

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