有机氮是植物、土壤和肥料中与碳结合的含氮物质的总称，如蛋白质、氨基酸、酰胺、尿素等。
总有机氮 [分化] [海洋] total organic nitrogen
有机氮肥 [肥料] organic nitrogenous fertilizer
水溶性有机氮 WSON
粒状有机氮 PON
有机氮农药 Organic nitrogen pesticides ; ONPs ; organonitrogen pesticide
可溶性有机氮 soluble organic nitrogen ; Dissolved organic nitrogen ; WEON ; DON
天然有机氮肥 Rough ammoniates Organic ammoniates
溶解有机氮 dissolved organic nitrogen
颗粒有机氮 particulate organic nitrogen ; PON
合成有机氮肥 [肥料] synthetic organic nitrogenous fertilizer
Inorganic nitrogen must be assimilated as organic nitrogen which can be absorbed andused by plants.
其中，无机氮必须同化为有机氮才能为植物体所吸收和利用。
参考来源 - 甜菜谷氨酰胺合成酶基因的克隆The environmental quality of the sediment was evaluated by using organic index and organic nitrogen and the average values of them were 0.306 and 2.010,which indicated that the surface sediment in Nanhu Lake was heavily contaminated by organic matter.
采用有机氮和有机指数评价沉积物环境质量,有机氮和有机指数均值分别为0.306和2.010,说明南湖表层沉积物总体有机污染严重。
参考来源 - 南湖表层沉积物中有机质·氮和磷的污染现状与评价·2,447,543篇论文数据，部分数据来源于NoteExpress
硝酸盐和水溶性有机氮随着去离子水的迁移而迁移，并增加了土壤的肥力。
Nitrate and water-soluble organic nitrogen were migrated with deionised water migrating and increased subsoil fertility.
证明全氮的主要成分是有机氮。
This testified that the main composition of TN is organic n.
氨同化作用是植物将无机氮转化成有机氮的一个重要过程。
Ammonium assimilation is a very important process to transform inorganic nitrogen into organic nitrogen for plants.
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