That's why peas don't need extra nitrogen to flourish.

Besides sun, it needs sulfur, nitrogen, and ammonia at much higher concentrations than in the sea.

Compost is low in the supply of the three essential elements needed for plant growth - nitrogen, phosphorus and potassium.

Phytoplankton need nitrogen in biologically available forms for the initial synthesis of organic matter.

You need nitrogen to make breathable gas.

Camelina needs little water or nitrogen to flourish; it can be grown on marginal agricultural lands.

The body, any body, needs nitrogen to grow, but obtaining it isn't always easy.

The microorganisms that decompose the sawdust also need nitrogen.

We don't need nitrogen to breathe and ordinarily we don't think much about it.

Organisms, plants especially, as every gardener knows, need nitrogen for growth, but they can't just absorb it from the air.