Scientists used a new version of the Root Zone Water Quality Model to estimate unsaturated zone nitrogen mass balances at four agricultural fields. The new version of the model can make ...

The nitrogen found on Earth doesn’t match the ... techniques called transmission electron microscopy and secondary ion mass spectrometry. These provide a glimpse of the material it contains ...

Pure nitrogen is rare, Siraj said, and has been found only on Pluto, where it makes up about 0.5% of the total mass. Even if all of the nitrogen ice in the universe was scraped off every Pluto ...

Nitrogen is pumped into the mask and is kept ... Jeff Wardlaw proposed the measure after talking with families of the victims of a mass shooting at a grocery store in his district that killed ...

The mass balances were expected to reveal the predominant forms of nitrogen in important agricultural settings. The four sites had variable climate, soils, and management practices, and included ...