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 ; or a Treatise on the Constituent Parts and Physical Properties of the Soil, and the best Method of acquiring a Knowledge of the different Earths, and ascertaining their Value.
Albrecht Thaer The Principles of Agriculture, Volume 1. William Shaw and Cuthbert W. Johnson (tr). Ridgway, 1844. p. 258: Title and subtitle of section III of the book.