专业释义
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碱解氮 - 引用次数：53
The nitrogen mineralization rate, total nitrogen, available nitrogen and phosphatase activity of Hippophae rhamnoides pure stand beyond to others.
沙棘纯林土壤的氮矿化速率、全氮含量、碱解氮含量及磷酸酶活性均大于混交林。
参考来源 - 沙棘人工林衰败原因及其对林地土壤氮矿化速率的影响有效氮 - 引用次数：36The contents of available nitrogen and phosphorus in the soils were significantly increased by 99% to 168% and 135% to 249%, and the contents of available potassium were enhanced by a range of 10%-15%.
土壤营养物质循环中,有效氮增加了99%168%,有效磷增加了135%249%,有效钾增加了10%15%。
参考来源 - 水稻根系酚酸类化感物质分泌动态及其对土壤生理生化特性的影响 -
有效〔性〕氮
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速效氮 - 引用次数：2
The correlation coefficients(R2) among them is 0.867 and 0.794. During the restoration process,nutrients,especially the soil organic matter,available phosphorus and available nitrogen,concentrated in the surface layer.
同时,相关性分析表明,土壤有机质的变化与全氮、速效氮呈现出显著的相关性,R2为0.867和0794,并且各养分具有明显的表聚性,尤以有机质、速效磷和速效氮表现明显。
参考来源 - 西北干旱区植被恢复的土壤养分效应
·2,447,543篇论文数据，部分数据来源于NoteExpress
双语例句原声例句权威例句
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Contrast to soil available nitrogen, soil total nitrogen was not influenced by the environmental factors.
而优势物种和功能群组成对土壤全氮的影响作用相对较弱。
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Soil organic matter, total nitrogen, total phosphorus, available nitrogen had middle spatial correlation patterns.
土壤有机质、全氮、全磷、速效氮具有中等空间自相关性。
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Quaternary red clay total nitrogen content was highest, but the available nitrogen content was lower than Granite soil and Purple sandy shale soil.
第四纪红土土壤全氮含量较高，但是其碱解氮含量比花岗岩母质土壤和紫色砂页岩土壤低。
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So if we take a look at nitrogen here, what you'll notice is we have thre available for bonding, - and we already have our lone pair -- one of our orbitals is already filled up.
如果我们看一下氮原子，我们注意到我们可以成3个键，我们已经有一个孤对-,其中的一个轨道已经被填满了。
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