Agriculture science is a field of biology that includes the parts of exact, natural, economic, and social sciences that are used in the application and understanding of agriculture. The primary role of science in agriculture has been to help us generate novelties that allow us to produce more or less land with less effort.
In the thirty years from 1971 to 2001, the improved crop varieties provided by the International Rice Research Institute and the International Maize and Wheat Improvement Center have helped raise average rice and wheat yields by 2.3 and 1.65 times. The International Assessment of Agricultural Science and Technology for Development focuses on agriculture as the provider of food.