They must offer higher yields but use less water, nitrogen-rich fertilizers, or other inputs.

它们必须提供更高的产量，但使用更少的水、富含氮的肥料或其他投入。

Where does all this nitrogen come from?

这些氮是哪里来的呢？

The bacon diet reduced the number of precancerous lesions in rats injected with the azoxymethane.

注射了氮氧甲烷的老鼠中，食用培根减少了癌前病变的数量。

You know, really the topic is just at the nitrogen cycle.

你知道，真正的主题只是关于氮循环的。

Also, Triton has been seen to have active geysers of nitrogen erupting from its surface!

此外，人们还发现海卫一的表面有活跃的氮间歇泉喷涌而出！

See, not all nitrogen is the same.

你知道吗，并非所有的氮都一样。

Nitrogen is non-negotiable for the chemical processes that make life work.

氮对于生命运作的化学过程是不可或缺的。

What if the nitrogen and oxygen in the atmosphere fuse together and release energy?

如果大气中的氮和氧融合一起并释放能量呢？

The researchers demonstrated the corn plants' talent by exposing them to labeled isotopes of nitrogen.

研究人米接触带标记的氮同位素，以此来证明其才能。

Common combustion products include hydrocarbons, oxides of nitrogen and sulfur, ammonia and particulate matter.

常见的燃烧产物包括碳氢化合物、氮和硫的氧化物、氨和颗粒物。

5 imperial gallons of the liquid helium. 5 You know how much helium that is?

英制加仑的液态氮你知道那是多少氮气吗？

Right now, nitrification, overuse of phosphates in our waterways are causing tremendous algal blooms.

如今，水体中过量的氮和磷 导致藻类疯长。

It's miraculously recycled all that dead material back into accessible nitrogen and phosphorous.

这是一种奇迹般的再生，所有的死亡物质又回到了可吸收的氮和磷状态。

Tom can search for the same type of nitrogen that's found in the bear's hairs.

汤姆可以年轮中搜寻那些与熊的皮毛中发现的相同类型的氮。

The bacteria uses nicotine as its sole source of carbon and nitrogen.

这种细菌会将尼古丁视为唯一的碳及氮的来源。

This leads to high concentrations of nitrogen and phosphorus.

这导致了高浓度的氮和磷。

The acacias' roots are boring under the mounds, tapping into a rich well of nitrogen.

金合欢树扎根于这些土堆中，能够充分利用丰富的氮。

As a result, these acacias become an oasis in a nitrogen desert.

因此，这些金合欢成为了氮沙漠中的绿洲。

And the cyanobacteria also fix nitrogen from the atmosphere, helping other microorganisms to thrive.

而且蓝细菌也可以调整空气中的氮含量，帮助其他微生物茁壮成长。

Where does all this nitrogen come from? The answer is farms.

这些氮是哪里来的呢？答案是农场。