and not just in large oxygen-depleted 'dead zones,' changing the way we think about the delicate nitrogen cycle. Nitrogen is essential to marine life and cycles throughout the ocean in a ...

When you feel a refreshing breeze on your cheeks, it is mostly nitrogen molecules swishing past. Our ecosystems naturally cycle nitrogen ... like the way nitrogen pollution is killing peat bogs.

Regarding the climate, it is easy to see how such a global limit is relevant: the carbon cycle is open ... Another way of providing cereals with nitrogen is crop rotation: growing cereals in ...

This is the nitrogen cycle. Farmers have always interfered with ... Today, 80 million tonnes of nitrogen is fixed from the atmosphere in this way each year and poured onto the world’s fields.

The reason it means so much to me is because of the relevence of the nitrogen cycle to the cycle of life ... But these bacteria cannot turn the knobs all the way back; the more nitrogen they ...

Figure 3: The impact of the nitrogen-fixation state on the occurrence ... respiration and that we therefore need a different way in which to determine the denitrification flux that sustains ...

That’s the way researchers found it in samples collected on Mars. The finding suggests that Mars could have supported a nitrogen cycle, which on Earth involves bacteria creating fixed nitrogen ...

Our study used several different techniques to show that rocks are an important component of the planet’s nitrogen cycle. In cases where weathering rates are high and sedimentary rocks contain a ...

The maintenance of dinitrogen fixers can be explained by interactions between individual fixation strategies, the indirect influence of climate on the nitrogen cycle, and competition between ...