Nitrogen is a critical element that plays a vital role in agriculture and the environment. Nitrogen is a key nutrient for crop production because it is a central part of protein and is needed for plants to grow. Nitrogen fertilizers are often used in agriculture to help the natural nitrogen cycle, boost crop yields, and ensure enough food for everyone. But too much use of nitrogen fertilizers can cause problems for the environment, such as eutrophication, contamination of groundwater, and the release of greenhouse gases. Despite its importance, excessive nitrogen uses and loss to the environment have led to a range of environmental problems. Climate change also affects the nitrogen cycle because higher temperatures can speed up the rate of nitrogen mineralization, which releases nitrogen into the air as greenhouse gases. By taking a holistic approach to nitrogen management, we can ensure a sustainable future for agriculture and the environment.