The phrase "less nitrogen" means there is a smaller amount of a gas called nitrogen.
Sentences with «less nitrogen»
If their efficiency could be transferred to crops, we could grow more food in less time using less water and less nitrogen fertilizer. (sciencedaily.com)
The engine is designed to be environmentally friendly with about 90 percent less nitrogen oxide than other diesel engines. (classicgaragedfw.com)
By doing this, we absorb less nitrogen and can have more bottom time to enjoy your dives. (diveshoptulum.com)