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Agronomy is a branch of agricultural science that deals with the study of crops and the soils in which they grow.
Agronomists work to develop methods that will improve the use of soil and increase the production of food and fiber crops.
They conduct research in crop rotation, irrigation and drainage, plant breeding, soil classification, soil fertility, weed control, and other areas.
For more information about the topic , read the full article at Wikipedia.org,