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An employee of the Natural Resources Conservation Service of the United States Department of Agriculture taking a soil sample from a farm in Charles City, Virginia. Agrology (sense 1) is the study of how soil condition influences crop production.

agro- +‎ -logy, modelled after French agrologie.[1]





agrology (uncountable)

  1. (rare) A subdiscipline of agronomy (the science of utilizing animals, plants, and soils) and of soil science which addresses the influence of edaphic (soil-related) conditions on crop production for optimizing it. [from mid 19th c.]
    • 1849 April, “Count Gasparin’s Introductory Lecture on Agriculture. Translated for the Working Farmer.”, in James J[ay] Mapes, editor, The Working Farmer: A Monthly Magazine, Devoted to Agriculture—Embracing Horticulture, Floriculture, Gardening, &c., volume I, number 3, New York, N.Y.: Published by Kingman & Cross, [], published 1850, →OCLC, page 35, column 3:
      Earth.—We have to examine its nature in connection with its products; this is the object of a technologic science, derived from mineralogy, and to which we give the name Agrology.
    • 1897, Wellford Addis, “Chapter XXVII. Colleges Endowed by Congress for the Benefit of Agriculture and the Mechanic Arts.”, in Report of the Secretary of the Interior; [] In Five Volumes (House of Representatives Document; no. 5), volume V, part 2, Washington, D.C.: Government Printing Office, →OCLC, section IV (The Agricultural Course in the French Colleges of Agriculture), page 1261:
      The subject of agriculture will in this school be considered under (1) agrology, or the study of the surface of the earth as to its origin, composition, and physical and chemical properties, []
    • 1928, Florida Quarterly Bulletin of the Department of Agriculure, number 150, Tallahassee, Fla.: Department of Agriculture, State of Florida, →OCLC, page 22:
      The future of civilization, and of the human race, will be largely determined by the agrology of the present and the immediate future.
    • 2013, Pavel Krasilnikov, Ma. del Carmen Gutiérrez-Castorena, Robert J. Ahrens, Carlos Omar Cruz-Gaistardo, Sergey Sedov, with Elizabeth Solleiro-Rebolledo, “Soil Research and Soil Mapping History”, in The Soils of Mexico (World Soils Book Series), Dordrecht, Heidelberg: Springer Science+Business Media, →DOI, →ISBN, →ISSN, section 2.2 (Early Soil Research), page 7, column 1:
      The Director of the ENA Marte R. Gómez-Segura [] reconstructed the school, and in 1923 invited Alfonso González-Gallardo, who was then recognized as one of the "fathers" of Mexican soil science for the development of agrology. [] The first agrology college was inaugurated in Villa de Meoqui, Chihuahua, in 1928.
  2. (chiefly Canada) The science and art of agriculture. [from mid 20th c.]
    • 1950, AIC Review, volume 5, Ottawa, Ont.: Agricultural Institute of Canada, →ISSN, →OCLC, page 53, column 1:
      Viewed in this light, agrology possesses a three-way interest, between the member, the agricultural industry and society.
    • 1966, AIC Review, Ottawa, Ont.: Agricultural Institute of Canada, →ISSN, →OCLC, page 2, column 1:
      It is appreciated that had these organizations not existed, comparable progress to advance the status of professional agrology would not have been made.
    • 1974, Technical and Scientific Papers Presented at 1974 Manitoba Agronomists’ Annual Conference, Winnipeg, Manitoba: Manitoba Department of Agriculture, →OCLC, page 93:
      Agrologists know that the science of agrology is a key science in resource conservation, []
    • 2014 February 5, Jon Entine, “Bee Deaths Reversal: As Evidence Points away from Neonics as Driver, Pressure Builds to Rethink Ban”, in Forbes[1], New York, N.Y.: Forbes, Inc., →ISSN, →OCLC, archived from the original on 8 February 2014:
      Although excluded from the Ontario study group, [Chris] Cutler, [Cynthia] Scott-Dupree, and David Drexler, an agrology consultant, published an analysis of all bee-kill incidents reported in Canada from 2007–2012.

Derived terms





  1. ^ agrology, n.”, in OED Online Paid subscription required, Oxford, Oxfordshire: Oxford University Press, September 2012; agrology”, in Lexico,; Oxford University Press, 2019–2022.

Further reading