总氮(total nitrogen)是指水中有机氮、氨氮、亚硝酸盐氮、硝酸盐氮的总和。总氮量的增加，主要导致微生物和藻类等水生生物大量繁殖，造成水体富营养化...
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4 常规性质检测[8] 采用pH计测定酸碱度；采用重量法（GB/72677.2-81）测定水分；采用凯氏定氮法测定总氮量（total nitrogen,TN）；采用石蜡油—重铬酸钾氧化法总有机碳量（total organic carbon,TOC）,计算C/N值. 腐熟剂:蘸着辣根吃牛排 1.
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中国最大的综合性文献数据库 -维普资讯 关键词: 农田黑土 不同施肥制度 有机质 全氮[gap=1169]Key words: black farmland; different fertilizer applications; organic matter; total nitrogen
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Determination of total nitrogen 总氮的测定 ; 氮的总含量测定
Determination of total nitrogen content 氮总含量的测定
total nitrogen accumulation 氮素积累总量
leaf total nitrogen content 叶片全n量
soil total nitrogen content 土壤全氮
total nitrogen concentration 总氮含量
insoluble nitrogen to total nitrogen 不溶氮与总氮之比
Removal of NH4+-N in the artificial wetland has high consistency with the removal of total nitrogen.
NH4+-N在人工湿地中的去除规律与总氮具有较高的一致性。
参考来源 - 人工湿地在城市湖泊景观水体水质保障上的试验研究The available carbon had a significant or most significant correlation to SOC, underground biomass ,total nitrogen, available nitrogen, soil bulk density and pH.
可利用碳与地下生物量,有机碳,全氮,速效氮,容重和pH值之间存在显著或极显著相关关系。
参考来源 - 青藏高原东缘高寒草甸土壤有机碳研究There were positive correlations among microbial biomass and soil organic carbon,total nitrogen.
微生物量碳、氮含量与土壤有机碳、全氮含量之间具有极显著的正相关关系。
参考来源 - 长期施肥对黑土、棕壤微生物量的影响Nitrogen-dressing could improve total nitrogen and nitrogen accumulation of different positional leaves in different period.
3.追氮量能提高打顶后不同时期不同部位叶片总氮和氮积累量。
参考来源 - 追氮量对烤烟生育后期叶片碳氮代谢及产质量的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
The results showed that straw application increased crop yield, soil organic carbon accumulation, soil total nitrogen and phosphorus content as well as phosphorus activation.
结果表明，秸秆还田提高了作物产量，增加了土壤有机碳积累和土壤氮磷含量，且能活化土壤磷素。
Nitrogen removal efficiency is significantly influenced by nitrogen form, and total nitrogen removal efficiency is high for the sewage with high proportion of nitrate nitrogen.
人工湿地进水氮形态不同显著影响湿地脱氮效果，较高的氧化态氮比例有利于总氮去除。
The results showed that total nitrogen, available nitrogen and organic matter were the main fertility indicators for soil fertility evaluation in the planted forest land on the Loess Plateau.
结果表明，全氮、碱解氮和有机质是黄土丘陵区人工林土壤主要的肥力指标，其含量能更好地反映土壤肥力状况。
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