深层土壤残留氮的利用 Residual Subsoil Nitrogen Capture
土壤氮残留 residual in soil
氮肥残留 nitrogen fertilizer residual
提出了用气相色谱直接测定水、土、粮食水果和蔬菜中10种有机氮农药多残留的分析方法。
A gas chromatographic method without derivatization was established for residue analysis of 10 organonitrogen pesticides in soil, water, cereals, fruit and vegetable.
随着新陈代谢作用的进行，以氨基糖为代表的微生物细胞壁残留物不断在土壤中积累，并进一步参与土壤碳、氮循环。
During the metabolism, the microbial residues represented as amino sugars were accumulated in soil and probably concerned in further carbon and nitrogen cycling.
施用氮肥可明显增加土壤硝态氮残留数量，并影响其剖面分布；
Application of N fertilizer significantly increased the amount of residual nitrate-N, and affected its distribution in the soil profile.
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