organic nitrogen pool [土壤] 有机氮库
soil nitrogen pool 土壤氮库
liquid nitrogen pool 液氮贮槽
active organic nitrogen pool 活性有机氮库
Study on change of carbon and nitrogen pool of farm black soil is rather important to protect and rationally exploit black soil under long-term fertilizer.
研究长期施肥条件下农田黑土有机碳库与氮库的变化动态,对我国黑土区的生态保护和合理开发利用具有重要意义。
参考来源 - 长期施肥条件下黑土有机碳库和氮库变化研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The study showed that freezing and thawing alternation had a significant influence on soil nitrogen pool in the alpine meadow.
上述研究表明，冻融交替对高寒草甸土壤氮素有显著影响。
The dynamics of various soil nitrogen pool after nitrogen fertilizer application at wheat seedling stage was studied by pot experiment and 15n trace technique.
应用盆栽试验和15n标记技术研究了小麦苗期施入N肥后土壤不同N库的动态。
Aiming at the poor effect of amino nitrogen degradation in conventional refinery oil sewage treatment, the secondary biochemical test was carried with biological aeration filter pool.
针对炼油厂含油废水的常规生化处理工艺对氨氮的降解效果较差，采用曝气生物滤池作为二级生化进行试验研究。
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