The nitrogen has to be absorbed in rain and then taken up by the roots of the plant.
No, not directly. There are bacteria that can fix Nitrogen out of the air and make it available as a nutrient but Nitrogen has to be in a compound form for it to be useful to most of the living things on Earth.
AMMONIA, NITRATES AND NITRITES
Plants cannot directly use nitrogen gas (N2) from the air because they lack the enzymes required to convert N2 into a form (like ammonia or nitrates) that they can assimilate. Therefore, plants rely on nitrogen-fixing bacteria in the soil to convert atmospheric nitrogen into a usable form. This nitrogen fixation process allows plants to obtain the necessary nitrogen for growth and development.
air
Yes, you can use nitrogen or plain air.
Nitrogen gas in the atmosphere is transformed by nitrogen-fixing bacteria into ammonia or nitrate, which are forms of nitrogen that can be absorbed and utilized by plants and other living organisms.
Yes, plants require nitrogen in a form that is biologically available, such as ammonia or nitrate, as they cannot directly utilize atmospheric nitrogen. Certain nitrogen-fixing bacteria assist in converting atmospheric nitrogen into a usable form for plants through a process called nitrogen fixation.
Nitrogen takes up most of the air we breathe
Nitrogen-fixing bacteria convert nitrogen gas from the air into a form that plants can use, called ammonia. These bacteria form symbiotic relationships with certain plants, such as legumes, providing them with a source of nitrogen for growth and development.
When we breathe in air, our bodies use the oxygen in it for energy and release the nitrogen back into the air when we exhale.
Most of the free nitrogen on Earth is found in the atmosphere, where it makes up about 78% of the air we breathe. Nitrogen gas (N2) is abundant in the atmosphere, but it is not readily available for use by most living organisms in this form.
Plants use nitrogen a N- and air has N2. Nitrogen fixation changes nitrogen into a form that plants can use.