Nitrogen is one of the primary nutrients critical for the survival of all living organisms. Although nitrogen is very abundant in the atmosphere, it is largely inaccessible in this form to most ...

Nitrogen gas makes up 78% of Earth’s atmosphere ... Nitrates are absorbed by the process of active uptake/transport, which moves the mineral from an area of low concentration in the soil to ...

Nitrification is the process that converts ammonia to nitrite and then to nitrate and is another important step in the global nitrogen cycle. Most nitrification occurs aerobically and is carried ...