Turned-down temperatures boost crops' penchant for production

Drought and heat put stress on plants and reduce grain yield. For some farmers, irrigation is the answer. Many of us assume the practice boosts crop yields by delivering soil water, but it turns out irrigation's cooling effect ...

Researchers quantify ecosystem-scale nitrification rate

Human-caused increases in gaseous nitrogen (N) emissions to the atmosphere have accelerated terrestrial ecosystem N deposition over the past half-century. As forest productivity is usually N limited, accelerated N deposition ...

The dirt on soil loss from the Midwest floods

As devastating images of the 2019 Midwest floods fade from view, an insidious and longer-term problem is emerging across its vast plains: The loss of topsoil that much of the nation's food supply relies on.

Studying Midwest soil erosion from space

Geologist and geochemist Isaac Larsen at the University of Massachusetts Amherst is used to tramping around in the dirt to conduct his soil research, but satellite photos of the Iowa farmhouse where he grew up have added ...

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