氮的矿化是土壤氮循环中的重要环节之一。
Nitrogen mineralization is one of the most important aspects in soil nitrogen circulation.
土壤氮状况是一个固氮、微生物分解、硝酸化和脱氮过程的作用。
The soil nitrogen status is a function of the processes of nitrogen fixation, microbial decompostion, nitrificattion and denitrification.
化肥氮残留很少，大部分进入土壤有机无机复合体中，而部分土壤氮被活化。
There was very little fertilizer N residue left, most of which entered the organo-mineral complex, while a part of the soil N was activated.
太湖地区小麦生长季节土壤氮磷向水体迁移的环境风险在小麦抽穗期后相对较高。
This implied that the relatively high risk of N and P losses through leaching and runoff in Taihu Lake region during season of wheat growth could probably occur after earing stage of the wheat growth.
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。
The results showed that straw application increased crop yield, soil organic carbon accumulation, soil total nitrogen and phosphorus content as well as phosphorus activation.
树脂芯方法对草原土壤氮转化过程干扰较小，是自然条件下研究温带草原土壤净氮矿化的有效手段。
Resin-core technique caused fewer disturbances to grassland soil processes, and was an effective technique for studying the net nitrogen mineralization in the field.
本文以室内土柱实验研究为基础，研究了漫灌、喷灌入渗条件下，土壤氮类、磷类化合物迁移转化的特征。
B ase on the study of lab experiment, the characteristics of nitrogen and phosphorus transport and transformation in soil was studied under sprinkler irrigation and flood irrigation.
分析数据表明，该区旱地土壤潜在肥力较低，有机质含量差异较大，大部分土壤氮、磷、钾养分供应不足。
The analytical data revealed that the potential fertility of the dryland soils was rather low, such as nitrogen, phosphorus and potassium content in soil were deficient on the whole.
温室试验结果表明该土壤氮、磷、钾和硫是产量限制因素，在某种程度上锌也可能是限制因素(见结果和讨论)。
Result from greenhouse indicated that n, P, K and s were found to be yield limiting factors, and Zn was also limiting yield at some extent (see of Results and Discussion).
根据氮在土壤中的运移规律，运用建立的数学模型分析流域降雨量和土壤氮含量与流域出口氮污染负荷之间的关系，揭示了氮污染的形成机理。
The researches on decreasing the pollution loads in rainfall runoff with PAM and functional materials of zeolite to improve the soil was accomplished using the simulated set.
下位叶比上位叶对土壤氮的供应状况更为敏感，随着施氮量的增加，水稻叶片氮素含量、叶绿素含量、SPAD值相应的增加，而下位叶的增幅更明显。
Leaf N/ chlorophyll content and SPAD value increased with the increasing N fertilizer, and the lower leaves were more sensitive to the soil N supply than the upper leaves.
排泄物含有肥沃土壤的氮。
土壤最经常缺乏氮和磷。
Soils are most commonly deficient in nitrogen and phosphorus.
例如，沼泽贫瘠的土壤提供的氮和磷很少，所以肉食植物比那些通过更传统的方式获得这些营养的植物更有优势。
The poor soil of bogs, for example, offers little nitrogen and phosphorus, so carnivorous plants enjoy an advantage over plants that obtain these nutrients by more conventional means.
即使是元素状态为气体的氮，也通常作为硝酸根离子从土壤中被吸收。
Even nitrogen, which is a gas in its elemental state, is normally absorbed from the soil as nitrate ions.
和普通土壤相比，马粪更富含磷和氮。
Horse waste is rich in phosphorus and also nitrogen compared to normal soil.
这些微生物可以让土壤中植物生长所需的氮含量增加，在冬天让植物仍保持活跃。
These microbes enable the soil to have more nitrogen, which plants need to live and they remain quite active during the winter.
我们会观察土壤的化学性质——比如某个地方的土壤里有多少氮或者镁——然后与附近土壤的化学性质作比较。
We look at soil chemistry—for example, how much nitrogen or magnesium there is in the soil in one spot—and we compare it with the chemistry of the soil a short distance away.
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.
因为降水通常会加剧土壤中一氧化二氮向外排放，她也搜集每次降雨或降雪后的数据。
Because precipitation usually increases nitrous oxide emissions from the soil, she also collects data after any rain or snowfall.
土壤储存有机碳，但会释放甲烷和一氧化二氮。
Soil stores organic carbon, but can emit methane and nitrous oxide.
盒中的土壤包含了正常含量的氮。
用过的咖啡渣，通过适量地在土壤中加入氮来对花园产生好的作用。
Used coffee grounds, in moderation, can do wonders for the garden by adding nitrogen to the soil.
氮和硫的排放物是造成土壤酸度和环境污染的两大主要来源。
Both nitrogen and sulphur emissions are major contributors to soil acidity and environmental pollution.
这样的间作也是一种天然施肥方式：豆子在较高的高粱底部生长，可为土壤增添氮。
Such intercropping is also a natural way of fertilizing: the legumes growing at the base of the taller sorghum add nitrogen to the soil.
集约化农业生产使用化肥，施到土壤中的化肥会释放强大的温室气体一氧化二氮。
Intensive farms also use fertilizers which release the powerful greenhouse gas nitrous oxide when applied to the soil.
树木能够克制水土流失，有的还能用氮修复土壤。
Trees limit soil erosion; some "fix" the soil with nitrogen.
生物炭在澳大利亚使用后，几个月后，农田的碳排放量剧减70%多，与此同时，它还能阻止土壤里的氨氮溶入水体。
Biochar applied to Australian fields and left for a number of months cut such emissions by more than 70 percent as well as preventing nitrogen and ammonia from leaching out of the soil in water.
“永冻土解冻和土壤排水对氧化亚氮的排放不会有显著影响”哥本哈根大学Bo Elberling领衔的报导写到。
"Thawing and drainage of the soils had little impact on nitrous oxide production," Nature said in a statement of the study led by Bo Elberling of Copenhagen University.
“永冻土解冻和土壤排水对氧化亚氮的排放不会有显著影响”哥本哈根大学Bo Elberling领衔的报导写到。
"Thawing and drainage of the soils had little impact on nitrous oxide production," Nature said in a statement of the study led by Bo Elberling of Copenhagen University.
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