Many compounds in plants include Nitrogen including Proteins and DNA.
Note, most plants can not use atmospheric Nitrogen (N2), and must absorb nitrogen that is bonded to hydrogen or carbon such as Ammonia (NH3).
To make proteins
their food and their lives
Plants can not absorb atmospheric elemental Nitrogen (N2). The nitrogen must be bound to carbon or hydrogen atoms such as ammonia (NH3), or Urea (NH2)2CO. Nitrogen Fixing Plants such as clover have a symbiotic relationship with bacteria on their root system that convert atmospheric nitrogen (N2) to forms that the plants can use.
It contains nitrogen, and nitrogen is a mineral needed by all plants in order to survive. Without nitrogen, plants would have very stunted growth.
Microorganisms convert atmospheric nitrogen gas into a form that plants can absorb and use. This process is called nitrogen fixation and is typically done by bacteria living in soil or in nodules on plant roots. Once plants take in the nitrogen, they can use it to build proteins through a process called protein synthesis.
Nitrogen is the most abundant element in the Earth's atmosphere. Bacteria in the soil 'fix' the nitrogen gas into compounds which can be taken in by plants; the plants get eaten by animals & they use the nitrogen to make proteins.
Plants use nitrogen a N- and air has N2. Nitrogen fixation changes nitrogen into a form that plants can use.
Because it converts nitrogen into a form plants can use.
Nitrogen fixation is the process by which bacteria remove nitrogen from the air and make it available to plants.
Plants need nitrogen to grow. They are surrounded by nitrogen in the air, but it is not in a form the plants can use. Nitrogen fixing bacteria on the roots of the plant convert (fix) the airborne nitrogen to a form the plants can use to grow.
Prokaryotes recycle carbon and make nitrogen available to plants
Plants primarily use nitrate (NO3-) nitrogen for their growth and development.