Nitrogen Cycle

Nitrogen Cycle

Definition: nitrogen cycle

nitrogen cycle: the set of processes by which nitrogen is converted from a gas in the atmosphere to nitrogen-containing substances in soil and living organisms, then converted back to a gas. Nitrogen is absorbed into green plants in the form of nitrates, the plants are then eaten by animals, and the nitrates are returned to the ecosystem through animals’ excreta or when an animal or a plant dies. The nitrogen cycle is fundamental to maintaining soil fertility and supporting plant growth. Farmers can benefit from understanding and managing the nitrogen cycle on their farms. Practices like crop rotation, cover cropping, and the use of legumes can enhance nitrogen fixation and improve soil health. By optimizing the nitrogen cycle, farmers can reduce the need for synthetic fertilizers, lower input costs, and promote sustainable farming practices.