These mosses are thought to be preferred because of their usability and relatively high nitrogen content.

Yeheb grows on soils, which have a low nitrogen content.

'We're testing for nitrogen content, sir,' one of the men explained.

They published a paper together on the nitrogen content of potatoes.

The plants had to establish a nutrient cycle that would allow the nitrogen content of the sand to increase.

At the time of harvest, seeds show high nitrogen (N) contents.

A different technique determined the nitrogen content, he said.

If the brain and muscles relied entirely on glucose, the body would lose 50% of its nitrogen content in 8-10 days.

As a general rule, manures are considered to be low in nitrogen content.

Kjeldahl method: A measure of nitrogen content in a sample.