For example, a reduction in organic carbon and nutrients, including phosphorus or nitrogen, as may occur in intensively farmed areas, DE creases the fertility of soils.

例如，过度耕种的土地可能发生有机碳和营养的减少，包括磷或氮，降低了土壤的肥力，在农作物密集的地区往往是这样。

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The final reduction product of nitrate nitrogen is ammonia nitrogen.

硝酸盐氮的最终还原产物为氨氮。

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Under mild ambient conditions gallium phosphide nanoparticles were employed to carry out the reduction of nitrogen.

在温和条件下，利用磷化镓纳米粒子进行了氮的还原反应，即氮氨转化。

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More stringent engine standards were already set to take effect three years hence, and the EPA was now requiring at least a 90% reduction in the amount of nitrogen oxides and soot emanating from diesel engines.

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The combined effect of charging and improved vehicle technology, notably cleaner-burning diesel engines that are being used in more buses and taxis, has led to an overall reduction of 13% in nitrogen oxides and 12% in PM10 via vehicle tailpipe emissions in the charging zone.

FORBES: Paul Maidment

The result, when it is burned, is the near-complete abolition of soot, and a reduction of up to 80% in nitrogen-oxide emissions.

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