Where does nitrogen come from?
The air all around us contains huge amounts of nitrogen. In fact, nitrogen makes up about 78% of the atmosphere. Fertilizer producers combine nitrogen with natural gas to change it into a form that plants can digest. Nitrogen is nitrogen, whether its used by plants, animals, or people. It is a key element in protein. Like the human body, plants need nitrogen to grow. Often used in greater amounts than other nutrients, nitrogen helps make plants green and plays a major role in boosting yields.
