Agronomy (Ancient Greek ἀγρός agrós 'field' + νόμος nómos 'law') is the science and technology of producing and using plants for food, fuel, fiber, and land reclamation. Agronomy has come to encompass work in the areas of plant genetics, plant physiology, meteorology, and soil science. It is the application of a combination of sciences like biology, chemistry, economics, ecology, earth science, and genetics. Agronomists of today are involved with many issues, including producing food, creating healthier food, managing the environmental impact of agriculture, and extracting energy from plants. Agronomists often specialise in areas such as crop rotation, irrigation and drainage, plant breeding, plant physiology, soil classification, soil fertility, weed control, and insect and pest control.
Agronomy is that division of the Agricultural College work which relates to the field and its crops and has to do with investigation and instruction along the lines of (a) Farm management; the application of economic business methods to farm (b) Farm Crops; their production and improvement, (c) Soils; their fertility, cultivation, and improvement, (d) Farm Mechanics; the tools, machinery, fences and drains of the farm.
Iowa Agricultural College (1895) Biennial Report of the Board of Trustees of the State Agricultural College and Farm to the Governor of Iowa and the … General Assembly, Vol. 16. p. 36; Also in: Iowa State College of Agriculture and the Mechanical Arts. Division of Agriculture Catalogue of the Division of Agriculture : agronomy, dairying, animal husbandry, horticulture, agricultural chemistry : science with practice : Ames, Iowa 1903-1904 (1903), p. 61.