Organic farming is a form of agriculture that relies on ecosystem management and attempts to reduce or eliminate external agricultural inputs, especially synthetic ones. It is a holistic production management system that promotes and enhances agro-ecosystem health, including biodiversity, biological cycles, and soil biological activity.

Organic cultivation of mixed vegetables in Capay, California. Note the hedgerow in the background.

In preference to the use of off-farm inputs, organic farming emphasizes management practices, taking into account that regional conditions require locally adapted systems. Utilizing both traditional and scientific knowledge, organic agricultural systems rely on agronomic, biological, and mechanical methods (these may require external inputs of nonrenewable resources, like tractor fuel), as opposed to using synthetic materials, to fulfill any specific function within the system. Organic farming is also associated with support for principles beyond cultural practices, such as fair trade and environmental stewardship, although this does not apply to all organic farms and farmers.

Cite: Wikipedia