heavy nitrogen
Americannoun
Example Sentences
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According to the study, this type of abrupt decline is common in regions that have experienced heavy nitrogen pollution for decades, including parts of Europe, eastern China, and the eastern United States.
From Science Daily ● Jun. 2, 2026
Corn generally requires heavy nitrogen application, while soybeans, as legumes, can fix much of their own nitrogen and often need little or no added fertilizer.
From Barron's ● Mar. 31, 2026
For example, as trees and mutualistic fungi work together, a larger proportion of heavy nitrogen isotopes are left in the fungi, as heavy isotopes are more difficult to move.
From Science Daily ● Oct. 23, 2023
As a biological label, heavy nitrogen promises Lo be even more important than heavy hydrogen, since nitrogen is the characteristic constituent of protein foods and their constituent amino acids.
From Time Magazine Archive
A gaseous compound of ammonia, rich in nitrogen, passes up through the tube; some condenses, trickles down and with each fall from cone to cone the concentration of heavy nitrogen becomes richer.
From Time Magazine Archive
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