The faeces contain nitrogen which fertilizes the soil.
排泄物含有肥沃土壤的氮。
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.
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。
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.
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。
Even nitrogen, which is a gas in its elemental state, is normally absorbed from the soil as nitrate ions.
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。
Horse waste is rich in phosphorus and also nitrogen compared to normal soil.
和普通土壤相比，马粪更富含磷和氮。
These microbes enable the soil to have more nitrogen, which plants need to live and they remain quite active during the winter.
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。
Agriculture produces more greenhouse gases than all methods of transport put together, and contributes to a host of other problems, from nitrogen pollution to soil erosion.
农业产生的温室气体比交通运输所有方式加起来还要多，并且还进一步促成了从氮污染到水土流失等许多其它问题。
The soil in the boxes contained normal nitrogen.
盒中的土壤包含了正常含量的氮。
Used coffee grounds, in moderation, can do wonders for the garden by adding nitrogen to the soil.
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。
Believe it or not, nettles are fussy about where they grow - in fact, they need a soil rich in phosphates and nitrogen to really thrive.
信不信由你，荨麻对它们生长的土壤很挑剔。事实上，它们的繁荣生长需要富含磷酸盐和氮的土壤。
The lunar soil (regolith) contains iron, aluminum, calcium, silicon, titanium, and oxygen, as well as trace amounts of lighter elements such as carbon, sulfur, and nitrogen.
月球的土壤(风化层)含有铁、铝、钙、硅、钛和氧等元素，此外还发现有大量较轻元素如碳、硫和氮等。
It changes soil, preserves food, inspires polar explorers and gives hope to those in search of resurrection now that bodies can be preserved in liquid nitrogen.
它可以改变土壤状况，保存食物，激励极地探险，给予那些保存在液氮的人们再次复苏的希望。
In theory extra carbon dioxide in the atmosphere should help plants grow faster, though whether this actually happens may also depend on the amount of nitrogen in the soil.
理论上，大气中二氧化碳含量增多会使作物生长加快，实际上，还要看土壤中所含氮成分的多少。
Heavy rains flooded the land. A lack of nitrogen in the soil made the corn stalks puny.
有些农田被牲口过度放牧亏损，暴雨淹没了田地，缺乏氮气造成玉米的秆子矮小。
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.
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。
Using traditional techniques such as crop rotation, compost and manure to supply the soil with nitrogen and other minerals would have required a tripling of the area under cultivation.
如果采用传统技术如轮作和堆肥为土壤补充氮和其他物质，就需要耕地也增长三倍了。
Such intercropping is also a natural way of fertilizing: the legumes growing at the base of the taller sorghum add nitrogen to the soil.
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。
Both nitrogen and sulphur emissions are major contributors to soil acidity and environmental pollution.
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。
Horizontal holes were drilled into the wet soil and liquid nitrogen was pumped in, freezing the water until the tunnel could be dug and cemented.
在湿的土壤中水平的打一些洞，然后泵入液氮对水进行冷冻，直到隧道可以被挖掘和用水泥封住。
Trees limit soil erosion; some "fix" the soil with nitrogen.
树木能够克制水土流失，有的还能用氮修复土壤。
Into them farmers plant tough desert trees — like the faidherbia albida, a type of acacia — that fix nitrogen into the soil.
等这块泥土逐渐成为一块狭窄的小土地以后，就可以用来种植耐旱的沙漠植物——如金合欢树，它能在土壤中固氮。
They say much of the soil lacks enough phosphorus and nitrogen.
他们说当地的大部分土壤缺乏足够的磷和氮。
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。
Nitrogen mineralization is one of the most important aspects in soil nitrogen circulation.
氮的矿化是土壤氮循环中的重要环节之一。
Therefore, straw mulching is an efficient measure to maintain and improve the regime of soil nitrogen nutrition.
因此，秸秆施用是保持和提高土壤氮素营养的有效措施。
Dynamics of different soil nitrogen pools after application of urea with DCD or organic materials were studied by aerial incubation method.
采用好气土壤培养试验，研究了尿素配施有机物料和DCD条件下土壤不同氮库的动态。
When the simulation model combined with GIS, it was easy to evaluate regional soil nitrogen behaviors under different treatments of water and nitrogen.
结果表明，通过模型计算与地理信息系统相结合，便于评价不同水氮管理、不同降雨年型条件下区域农田土壤水、氮素行为。
The above results show that, the effect of alternative freezing and thawing has a great influence on the soil organic matter, soil nitrogen, soil potassium and some soil enzymes.
上述研究结果说明，冻融交替作用对黑土土壤有机质、氮钾和酶活性产生重要影响。
The above results show that, the effect of alternative freezing and thawing has a great influence on the soil organic matter, soil nitrogen, soil potassium and some soil enzymes.
上述研究结果说明，冻融交替作用对黑土土壤有机质、氮钾和酶活性产生重要影响。
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