Nitrogen fertilisers have altered the balance of chemical isotopes in peat bogs.

肥改变了泥炭沼泽中化学同位素的平衡。

Oh, and in my shed I have a bin of nitrogen pellets.

哦，我还在棚子里放了肥。

Farmers' use of nitrogen fertilizer drives up the amount of nitrous oxide produced in soil.

农使用肥增加了土壤中氧化二的产量。

For instance, the nitrogen fertilizers that we use to grow food are running off into our bodies of water, and producing low oxygen “dead zones” that would be visible in sedimentary layers.

例如，人类用来种植作物的肥正在流入我们的水体，并产生些低氧“死亡区”，它们在沉积层是可见的。

Aaron Packman is a professor of Civil and Environmental Engineering at Northwestern University. He says farmers may be able to better control the amount of nitrate fertilizer they put on their fields.

亚伦•帕克曼（Aaron Packman）是美国西北大学土木与环境工程学教授，他说农们也许能控制投放到田地里的肥量。

This has been sort of the holy grail, you know, if only I could grow corn and not put 200 pounds of nitrogen on it.

“如果能不用施200磅肥就能让玉米生长，那就像是圣杯样。”

French scientists traced nitrogen fertilizer and found that roughly 15 percent of the nitrogen applied in 1982 was still sitting in the soil today.

法国科学家追踪了肥，他们发现1982年施用的肥有大概15%现在依旧留在土壤中。

We founded Pivot Bio with one mission in mind: how do we reinvent what it means to provide nitrogen to our crops?

我们建立 Pivot Bio 心中带着个任务：我们如重新发明出为我们的农作物提供肥的东西？

A company that follows fertilizer in London, CRU Group, said nitrogen-based fertilizer is four times more expensive than it was in 2020.

伦敦家追踪肥料情况的公司英国商品研究所表示，肥的价格是2020年的四倍。

Farmers are currently incentivized to use techniques that reduce the health of the soil and rely heavily on nitrogen-rich fertilizers.

目前，农被鼓励使用的技术会对土壤健康有不良影响，且非常仰赖肥。

Just pile them up in a corner, add nitrogen fertilizer, and water it to keep it from drying out.

只需把它们堆在角落里，加入肥，然后浇水，以防其变干。

It's consuming nearly 95 to 99 percent of the fertilizer nitrogen and splitting it out into nitrates.

它会消耗肥中 95% 至 99% 的，再以硝酸盐的形态将其排出。

He says farmers may be able to better control the amount of nitrate fertilizer they put on fields.

他说农们也许能控制投放到田地里的肥量。

If you look at the nitrogen fertilizer consumption from the beginning of the Green Revolution, it has grown nearly 30 fold.

对比下绿色革命初期的肥用量，如今已经翻了将近 30 倍。

But it can't make its own nitrogen.

但它不能自己制造肥。

Grass absolutely needs nitrogen. You can get nitrogen pellets at the seed shop.

“这种植物定要用肥，你可以去种子店买些肥。”

That's what is going to control — that's what is going to reduce the amount of nitrogen fertilizer in future in wheat root systems.

这就是我们从小麦根系中找到的，能在未来减少肥用量的方法。

The patron of the club smiled and asked me if I had used nitrogen.

倶乐部的位老会员笑着问我是否用过肥。

As I said, what used to be a small, insignificant microbial activity in the soil has grown into a monstrous proportion, sucking up all the fertilizer nitrogen we are applying.

如我所说，以前土壤中这微不足道的微生物活动已经长成了庞然大物，吸收了我们投入的所有肥。

And also, these four crops consume more than 90 percent of the entire nitrogen fertilizer produced industrially goes to these four production systems.

与此同时，超过 90% 工业生产的肥会进入这 4 种粮食的生产系统。