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agronomy[ugron´umE] Pronunciation Key, branch of agriculture dealing with various physical and biological factors : including soil management, tillage, crop rotation, breeding, weed control, and climate : related to crop production. Agronomy commonly refers to field crops, e.g. wheat, rice, corn, sorghum, soybean, cotton, as well as pasture, sugar, and forage crops; while horticulture is concerned with fruits, vegetables, flowers, and ornamental plants; silviculture, or forestry, with forest trees; and agroforestry, with mixtures of trees with other crops.
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