"I'm excited about our progress," says Brown, who harvests eggs for Denver-based NestFresh Eggs and is adding more cover crops that draw worms and crickets for the chickens to eat.

“对于我们所取得的进步，我感到很兴奋。”布朗说。他采收的鸡蛋供货于总部位于丹佛的 NestFresh 蛋品公司，而且他正在种植更多的覆土作物，以招引蠕虫和蟋蟀供鸡食用。

youdao

These plants are called cover crops.

群山覆盖着各种植被。

youdao

European vetch much cultivated as forage and cover crops.

欧洲的一种野豌豆，通常被用来制草料和覆盖作物。

youdao

Later, farmers reported damage to young crops after "cover crops" - designed to protect them from the elements - were blown away.

BBC: Fen Blow phenomenon: Farmers concerned as winds threaten

The weather impact was exacerbated by decades of extensive farming without crop rotation, cover crops and other techniques to prevent wind erosion.

FORBES: He's Baaack!: A Hot New Media Blast From Al Gore

Farmers can also add carbon-rich compost to the soil, and plant "cover crops" such as rye or vetch during parts of the year when land otherwise would lie idle.

NPR: Iowa Farmers Look to Trap Carbon in Soil